玻璃观景台地板碎裂 几百米高空惊魂之旅
<p><span word="A">A</span> <span word="protective">protective</span> <span word="coating">coating</span> <span word="on">on</span> <span word="a">a</span> <span word="glass">glass</span> <span word="sightseeing">sightseeing</span> <span word="box">box</span> <span word="that">that</span> <span word="extends">extends</span> <span word="from">from</span> <span word="the">the</span> 103<span word="rd">rd</span> <span word="floor">floor</span> <span word="of">of</span> <span word="the">the</span> <span word="Willis">Willis</span> <span word="Tower">Tower</span> <span word="in">in</span> <span word="Chicago">Chicago</span> <span word="cracked">cracked</span> <span word="Wednesday">Wednesday</span> <span word="night">night</span>, <span word="but">but</span> <span word="officials">officials</span> <span word="said">said</span> <span word="no">no</span> <span word="one">one</span> <span word="was">was</span> <span word="ever">ever</span> <span word="in">in</span> <span word="danger">danger</span>.</p><p><span word="Tourist">Tourist</span> <span word="Alejandro">Alejandro</span> <span word="Garibay">Garibay</span> <span word="and">and</span> <span word="four">four</span> <span word="of">of</span> <span word="his">his</span> <span word="family">family</span> <span word="members">members</span> <span word="were">were</span> <span word="standing">standing</span> <span word="in">in</span> <span word="one">one</span> <span word="of">of</span> <span word="the">the</span> <span word="glass">glass</span> <span word="boxes">boxes</span> <span word="that">that</span> <span word="jut">jut</span> <span word="out">out</span> <span word="from">from</span> <span word="the">the</span> <span word="side">side</span> <span word="of">of</span> <span word="the">the</span> <span word="tower">tower</span> <span word="when">when</span> <span word="they">they</span> <span word="heard">heard</span> <span word="a">a</span> <span word="strange">strange</span>, <span word="worrisome">worrisome</span> <span word="noise">noise</span> <span word="below">below</span> <span word="them">them</span>.</p><p><span word="A">A</span> <span word="Willis">Willis</span> <span word="Tower">Tower</span> <span word="spokesman">spokesman</span> <span word="Bill">Bill</span> <span word="Utter">Utter</span> <span word="clarified">clarified</span> <span word="Thursday">Thursday</span> <span word="that">that</span> <span word="it">it</span> <span word="was">was</span> <span word="a">a</span> <span word="protective">protective</span> <span word="coating">coating</span>, <span word="not">not</span> <span word="glass">glass</span>, <span word="that">that</span> <span word="cracked">cracked</span> -- <span word="as">as</span> <span word="it">it</span> <span word="sometimes">sometimes</span> <span word="does">does</span>.</p><p>"<span word="At">At</span> <span word="no">no</span> <span word="time">time</span> <span word="whatsoever">whatsoever</span> <span word="was">was</span> <span word="the">the</span> <span word="integrity">integrity</span> <span word="of">of</span> <span word="the">the</span> <span word="structure">structure</span> <span word="compromised">compromised</span>," <span word="he">he</span> <span word="said">said</span>.</p><p><span word="The">The</span> <span word="ledges">ledges</span> <span word="are">are</span> <span word="designed">designed</span> <span word="to">to</span> <span word="hold">hold</span> 5 <span word="tons">tons</span>, <span word="and">and</span> <span word="the">the</span> <span word="coating">coating</span> <span word="keeps">keeps</span> <span word="the">the</span> <span word="glass">glass</span> <span word="from">from</span> <span word="being">being</span> <span word="scratched">scratched</span>.</p><p>"<span word="The">The</span> <span word="protective">protective</span> <span word="layer">layer</span> <span word="did">did</span> <span word="exactly">exactly</span> <span word="what">what</span> <span word="it">it</span> <span word="was">was</span> <span word="supposed">supposed</span> <span word="to">to</span> <span word="do">do</span>," <span word="Utter">Utter</span> <span word="said">said</span>.</p><p><span word="The">The</span> <span word="four">four</span> <span word="Skydeck">Skydeck</span> <span word="ledges">ledges</span> <span word="are">are</span> <span word="a">a</span> <span word="series">series</span> <span word="of">of</span> <span word="clear">clear</span> <span word="bays">bays</span> <span word="with">with</span> <span word="glass">glass</span> <span word="floors">floors</span> <span word="that">that</span> <span word="extend">extend</span> <span word="a">a</span> <span word="little">little</span> <span word="more">more</span> <span word="than">than</span> 4 <span word="feet">feet</span> <span word="from">from</span> <span word="the">the</span> <span word="building">building</span>. <span word="Visitors">Visitors</span> <span word="can">can</span> <span word="see">see</span> <span word="the">the</span> <span word="street">street</span> 1,353 <span word="feet">feet</span> <span word="below">below</span> <span word="their">their</span> <span word="feet">feet</span>. <span word="According">According</span> <span word="to">to</span> <span word="the">the</span> <span word="Skydeck">Skydeck</span> <span word="website">website</span>, <span word="each">each</span> <span word="bay">bay</span> <span word="is">is</span> <span word="made">made</span> <span word="from">from</span> <span word="three">three</span> <span word="layers">layers</span> <span word="of">of</span> <span word="half">half</span>-<span word="inch">inch</span> <span word="thick">thick</span> <span word="glass">glass</span>.</p><p><span word="Visitors">Visitors</span> <span word="who">who</span> <span word="step">step</span> <span word="into">into</span> <span word="one">one</span> <span word="of">of</span> <span word="the">the</span> <span word="boxes">boxes</span> <span word="can">can</span> <span word="see">see</span> <span word="for">for</span> 50 <span word="miles">miles</span> <span word="across">across</span> <span word="four">four</span> <span word="states">states</span>.</p><p><span word="Since">Since</span> 2009, 6 <span word="million">million</span> <span word="people">people</span> <span word="have">have</span> <span word="ventured">ventured</span> <span word="into">into</span> <span word="the">the</span> <span word="ledges">ledges</span>, <span word="which">which</span> <span word="retract">retract</span> <span word="into">into</span> <span word="the">the</span> <span word="tower">tower</span> <span word="when">when</span> <span word="the">the</span> <span word="windows">windows</span> <span word="need">need</span> <span word="cleaning">cleaning</span>.</p><p><span word="The">The</span> <span word="ledges">ledges</span> <span word="were">were</span> <span word="closed">closed</span> <span word="for">for</span> <span word="some">some</span> <span word="time">time</span> <span word="Thursday">Thursday</span>, <span word="but">but</span> <span word="the">the</span> <span word="Skydeck">Skydeck</span> <span word="viewing">viewing</span> <span word="area">area</span> <span word="on">on</span> <span word="the">the</span> 103<span word="rd">rd</span> <span word="floor">floor</span> <span word="was">was</span> <span word="open">open</span>.</p><p><span word="Around">Around</span> 7 <span word="p">p</span>.<span word="m">m</span>., <span word="Willis">Willis</span> <span word="Tower">Tower</span>'<span word="s">s</span> <span word="Facebook">Facebook</span> <span word="page">page</span> <span word="indicated">indicated</span> <span word="that">that</span> "<span word="the">the</span> <span word="new">new</span> <span word="protective">protective</span> <span word="coating">coating</span> <span word="on">on</span> <span word="Ledge">Ledge</span> 4 <span word="has">has</span> <span word="been">been</span> <span word="installed">installed</span>."</p>
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