Cyclists make Olympic history, 400-year-old shark 英国自行车运动员创英奥运历史，400岁格陵兰鲨鱼
<p><span word="Cyclists">Cyclists</span> <span word="make">make</span> <span word="Olympic">Olympic</span> <span word="history">history</span>, 400-<span word="year">year</span>-<span word="old">old</span> <span word="shark">shark</span> 英国自行车运动员创英奥运历史，400岁格陵兰鲨鱼</p><p>本集内容 <span word="British">British</span> <span word="couple">couple</span> <span word="ride">ride</span> <span word="into">into</span> <span word="Olympic">Olympic</span> <span word="history">history</span> 英国自行车队“金童玉女”双双得冠</p><p><span word="Scientists">Scientists</span> <span word="discover">discover</span> 400-<span word="year">year</span>-<span word="old">old</span> <span word="shark">shark</span> 科学家发现400岁鲨鱼</p><p> <span word="British">British</span> <span word="cycling">cycling</span>'<span word="s">s</span> <span word="Olympic">Olympic</span> <span word="golden">golden</span> <span word="couple">couple</span> <span word="Jason">Jason</span> <span word="Kenny">Kenny</span> <span word="and">and</span> <span word="Laura">Laura</span> <span word="Trott">Trott</span> <span word="have">have</span> <span word="ridden">ridden</span> <span word="into">into</span> <span word="the">the</span> <span word="record">record</span> <span word="books">books</span>. <span word="They">They</span>'<span word="ve">ve</span> <span word="now">now</span> <span word="taken">taken</span> <span word="their">their</span> <span word="collective">collective</span> <span word="gold">gold</span> <span word="medal">medal</span> <span word="tally">tally</span> <span word="to">to</span> <span word="ten">ten</span>, <span word="winning">winning</span> <span word="five">five</span> <span word="in">in</span> <span word="Rio">Rio</span>. <span word="Also">Also</span> <span word="on">on</span> <span word="Tuesday">Tuesday</span> 19-<span word="year">year</span>-<span word="old">old</span> <span word="Simone">Simone</span> <span word="Biles">Biles</span> <span word="became">became</span> <span word="only">only</span> <span word="the">the</span> <span word="fourth">fourth</span> <span word="competitor">competitor</span> <span word="to">to</span> <span word="win">win</span> <span word="four">four</span> <span word="gymnastic">gymnastic</span> <span word="gold">gold</span> <span word="medals">medals</span>. <span word="She">She</span> <span word="won">won</span> <span word="the">the</span> <span word="women">women</span>'<span word="s">s</span> <span word="floor">floor</span> <span word="final">final</span>.</p><p>英国自行车队的“金童玉女”杰森·肯尼（<span word="Jason">Jason</span> <span word="Kenny">Kenny</span>）和劳拉·特洛特（<span word="Laura">Laura</span> <span word="Trott">Trott</span>）在里约奥运会中的表现被载入英国奥运史册。至此，他们俩共同获得的金牌总数达十块，其中五块来自本届里约奥运会。同样，在周二的比赛中，美国队19岁的西蒙·拜尔斯（<span word="Simone">Simone</span> <span word="Biles">Biles</span>）获得了女子自由体操的金牌，成为历史上第四位获得四块奥运会体操比赛金牌的选手。</p><p><span word="The">The</span> <span word="Greenland">Greenland</span> <span word="shark">shark</span> <span word="lives">lives</span> <span word="in">in</span> <span word="the">the</span> <span word="icy">icy</span> <span word="Arctic">Arctic</span> <span word="waters">waters</span> <span word="and">and</span> <span word="feeds">feeds</span> <span word="on">on</span> <span word="fish">fish</span> <span word="and">and</span> <span word="seals">seals</span>. <span word="But">But</span> <span word="until">until</span> <span word="now">now</span> <span word="no">no</span> <span word="one">one</span> <span word="knew">knew</span> <span word="exactly">exactly</span> <span word="how">how</span> <span word="long">long</span> <span word="they">they</span> <span word="live">live</span>. <span word="Researchers">Researchers</span> <span word="have">have</span> <span word="found">found</span> <span word="one">one</span> <span word="that">that</span> <span word="could">could</span> <span word="be">be</span> 400 <span word="years">years</span> <span word="old">old</span>, <span word="making">making</span> <span word="it">it</span> <span word="the">the</span> <span word="oldest">oldest</span> <span word="vertebrate">vertebrate</span> <span word="animal">animal</span>.</p><p>格陵兰鲨鱼生活在冰冷的北极水域里，以鱼和海豹为食。以前没人知道这些鲨鱼到底能存活多久，但研究人员最近发现了一条可能存活了400年的鲨鱼，使它成为已知寿命最长的脊椎动物。</p>
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