Shark-detecting drones 可探测鲨鱼的无人机
<p><span word="Shark">Shark</span>-<span word="detecting">detecting</span> <span word="drones">drones</span> 可探测鲨鱼的无人机</p><p>本集内容 <span word="Shark">Shark</span>-<span word="detecting">detecting</span> <span word="drones">drones</span> 可探测鲨鱼的无人机</p><p>学习要点 有关“<span word="Danger">Danger</span> 危险”的词汇</p><p>边看边答 <span word="How">How</span> <span word="does">does</span> <span word="the">the</span> <span word="drone">drone</span> <span word="know">know</span> <span word="if">if</span> <span word="it">it</span>'<span word="s">s</span> <span word="spotted">spotted</span> <span word="a">a</span> <span word="swimmer">swimmer</span> <span word="or">or</span> <span word="a">a</span> <span word="shark">shark</span>?</p><p> <span word="A">A</span> <span word="shadow">shadow</span> <span word="in">in</span> <span word="the">the</span> <span word="sea">sea</span> <span word="or">or</span> <span word="something">something</span> <span word="more">more</span> <span word="sinister">sinister</span>?</p><p><span word="From">From</span> <span word="the">the</span> <span word="beach">beach</span> <span word="it">it</span>'<span word="s">s</span> <span word="hard">hard</span> <span word="to">to</span> <span word="tell">tell</span> <span word="but">but</span> <span word="from">from</span> <span word="the">the</span> <span word="skies">skies</span> <span word="the">the</span> <span word="drone">drone</span> <span word="has">has</span> <span word="a">a</span> <span word="clearer">clearer</span> <span word="view">view</span>. <span word="It">It</span> <span word="feeds">feeds</span> <span word="into">into</span> <span word="deep">deep</span> <span word="learning">learning</span> <span word="software">software</span> <span word="which">which</span> <span word="it">it</span>'<span word="s">s</span> <span word="claimed">claimed</span> <span word="has">has</span> <span word="a">a</span> 92% <span word="success">success</span> <span word="rate">rate</span> <span word="in">in</span> <span word="spotting">spotting</span> <span word="sharks">sharks</span>, <span word="as">as</span> <span word="well">well</span> <span word="as">as</span> <span word="less">less</span> <span word="threatening">threatening</span> <span word="species">species</span>. <span word="Every">Every</span> <span word="time">time</span> <span word="it">it</span> <span word="sees">sees</span> <span word="a">a</span> <span word="dolphin">dolphin</span>, <span word="whale">whale</span> <span word="or">or</span> <span word="a">a</span> <span word="swimmer">swimmer</span> <span word="in">in</span> <span word="distress">distress</span> <span word="it">it</span> <span word="learns">learns</span> <span word="their">their</span> <span word="shape">shape</span>. <span word="Launched">Launched</span> <span word="along">along</span> <span word="the">the</span> <span word="beaches">beaches</span> <span word="of">of</span> <span word="New">New</span> <span word="South">South</span> <span word="Wales">Wales</span> <span word="the">the</span> <span word="drones">drones</span> <span word="can">can</span> <span word="patrol">patrol</span> <span word="for">for</span> 40 <span word="minutes">minutes</span>. <span word="Daniel">Daniel</span> <span word="was">was</span> <span word="one">one</span> <span word="of">of</span> <span word="the">the</span> <span word="first">first</span> <span word="to">to</span> <span word="train">train</span> <span word="as">as</span> <span word="a">a</span> <span word="lifesaver">lifesaver</span> <span word="pilot">pilot</span>. </p><p><span word="Daniel">Daniel</span> <span word="Trollope">Trollope</span>, <span word="Drone">Drone</span> <span word="pilot">pilot</span></p><p><span word="I">I</span> <span word="mean">mean</span>, <span word="I">I</span> <span word="can">can</span>'<span word="t">t</span> <span word="physically">physically</span> <span word="run">run</span> <span word="out">out</span> <span word="and">and</span> <span word="grab">grab</span> <span word="a">a</span> <span word="board">board</span> <span word="and">and</span> <span word="paddle">paddle</span> <span word="out">out</span> <span word="and">and</span> <span word="save">save</span> <span word="someone">someone</span>, <span word="but">but</span> <span word="sitting">sitting</span> <span word="on">on</span> <span word="the">the</span> <span word="beach">beach</span> <span word="we">we</span>’<span word="ve">ve</span> <span word="got">got</span> <span word="eyes">eyes</span> <span word="in">in</span> <span word="the">the</span> <span word="sky">sky</span> <span word="and">and</span> <span word="we">we</span>'<span word="re">re</span> <span word="just">just</span> <span word="another">another</span> <span word="layer">layer</span> <span word="of">of</span> <span word="protection">protection</span>, <span word="really">really</span>. </p><p><span word="The">The</span> <span word="drones">drones</span> <span word="don">don</span>’<span word="t">t</span> <span word="only">only</span> <span word="observe">observe</span> - <span word="they">they</span> <span word="can">can</span> <span word="react">react</span> <span word="too">too</span>, <span word="dropping">dropping</span> <span word="an">an</span> <span word="inflatable">inflatable</span> <span word="device">device</span> <span word="to">to</span> <span word="help">help</span> <span word="people">people</span> <span word="in">in</span> <span word="the">the</span> <span word="sea">sea</span>. <span word="It">It</span> <span word="won">won</span>'<span word="t">t</span> <span word="replace">replace</span> <span word="the">the</span> <span word="use">use</span> <span word="of">of</span> <span word="controversial">controversial</span> <span word="shark">shark</span> <span word="nets">nets</span> <span word="and">and</span> <span word="drum">drum</span> <span word="lines">lines</span> <span word="however">however</span> – <span word="which">which</span> <span word="some">some</span> <span word="claim">claim</span> <span word="do">do</span> <span word="more">more</span> <span word="harm">harm</span> <span word="than">than</span> <span word="good">good</span>. <span word="The">The</span> <span word="drones">drones</span> <span word="won">won</span>'<span word="t">t</span> <span word="be">be</span> <span word="on">on</span> <span word="every">every</span> <span word="beach">beach</span> <span word="every">every</span> <span word="day">day</span>, <span word="but">but</span> <span word="they">they</span> <span word="should">should</span> <span word="give">give</span> <span word="everyone">everyone</span> <span word="a">a</span> <span word="better">better</span> <span word="understanding">understanding</span> <span word="of">of</span> <span word="what">what</span>’<span word="s">s</span> <span word="down">down</span> <span word="below">below</span>. </p><p>仅仅是一个影子？或是一个更危险的生物？ </p>
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