'World's longest cave' discovered 墨西哥潜水团队发现“世界最长”水下洞穴
<p>'<span word="World">World</span>'<span word="s">s</span> <span word="longest">longest</span> <span word="cave">cave</span>' <span word="discovered">discovered</span> 墨西哥潜水团队发现“世界最长”水下洞穴</p><p> 墨西哥的潜水员们在当地发现了“世界上最长的”水下洞穴，这个洞穴长约216英里（347公里）。名为“大玛雅地下水层项目（<span word="The">The</span> <span word="Gran">Gran</span> <span word="Acuifero">Acuifero</span> <span word="Maya">Maya</span> <span word="project">project</span>）”的工作人员称，这一发现将帮助我们更加深入地了解有关玛雅文明的历史。</p><p><span word="The">The</span> <span word="group">group</span> <span word="of">of</span> <span word="divers">divers</span> <span word="spent">spent</span> <span word="months">months</span> <span word="exploring">exploring</span> <span word="a">a</span> <span word="maze">maze</span> <span word="of">of</span> <span word="underwater">underwater</span> <span word="channels">channels</span> <span word="near">near</span> <span word="the">the</span> <span word="Mexican">Mexican</span> <span word="beach">beach</span> <span word="resort">resort</span> <span word="of">of</span> <span word="Tulum">Tulum</span>. <span word="Parts">Parts</span> <span word="of">of</span> <span word="the">the</span> <span word="region">region</span> <span word="were">were</span> <span word="inhabited">inhabited</span> <span word="by">by</span> <span word="the">the</span> <span word="ancient">ancient</span> <span word="Mayan">Mayan</span> <span word="civilisation">civilisation</span> <span word="before">before</span> <span word="the">the</span> <span word="Spanish">Spanish</span> <span word="conquest">conquest</span> <span word="in">in</span> <span word="the">the</span> 16<span word="th">th</span> <span word="century">century</span>.</p><p>这组潜水员用了数月时间在墨西哥海滩度假胜地图卢姆（<span word="Tulum">Tulum</span>）附近对水下错综复杂的峡谷开展了研究活动。该地的部分区域在17世纪被西班牙占领前曾是玛雅文明的所在地。</p><p><span word="With">With</span> <span word="more">more</span> <span word="than">than</span> 200 <span word="caves">caves</span>, <span word="they">they</span> <span word="thought">thought</span> <span word="there">there</span> <span word="was">was</span> <span word="chance">chance</span> <span word="that">that</span> <span word="something">something</span> <span word="record">record</span>-<span word="breaking">breaking</span> <span word="would">would</span> <span word="be">be</span> <span word="found">found</span> <span word="below">below</span> <span word="the">the</span> <span word="surface">surface</span> – <span word="they">they</span> <span word="just">just</span> <span word="had">had</span> <span word="no">no</span> <span word="proof">proof</span> – <span word="until">until</span> <span word="now">now</span>. <span word="For">For</span> <span word="the">the</span> <span word="team">team</span> <span word="has">has</span> <span word="discovered">discovered</span> <span word="that">that</span> <span word="one">one</span> <span word="large">large</span> <span word="cavern">cavern</span>, <span word="Sac">Sac</span> <span word="Actun">Actun</span>, <span word="is">is</span> <span word="actually">actually</span> <span word="connected">connected</span> <span word="to">to</span> <span word="another">another</span>, <span word="Dos">Dos</span> <span word="Ojos">Ojos</span>, <span word="creating">creating</span> <span word="a">a</span> 350<span word="km">km</span>-<span word="long">long</span> <span word="cave">cave</span>. <span word="Now">Now</span> <span word="for">for</span> <span word="size">size</span>, <span word="that">that</span>'<span word="s">s</span> <span word="the">the</span> <span word="equivalent">equivalent</span> <span word="of">of</span> 7,000 <span word="Olympic">Olympic</span> <span word="swimming">swimming</span> <span word="pools">pools</span> <span word="in">in</span> <span word="length">length</span> <span word="and">and</span> <span word="in">in</span> <span word="places">places</span> <span word="up">up</span> <span word="to">to</span> 100<span word="m">m</span> <span word="deep">deep</span>.</p><p>该团队已挖掘出的洞穴有200多个，因此他们认为很可能会在水下发现长度破纪录的一个，只是直到现在为止，他们没有找到证据。已发现的被称作“白色洞穴（<span word="Sac">Sac</span> <span word="Actun">Actun</span>）”的巨大山洞其实与“双眼洞穴（<span word="Dos">Dos</span> <span word="Ojos">Ojos</span>）”相连，共同构成了350公里长的山洞。它的大小相当于7000个奥林匹克规模的游泳池的总长，而且洞中一些地方的深度达100米。</p>
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