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<p style="text-align: justify; text-indent: 2em;">被誉“世界天坑之都”的广西乐业县，当前已发现天坑30个。</p>
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<p style="text-align: justify; text-indent: 2em;">这些天坑的底部，是人迹罕至的自然之地，从古至今，一直保持着原始神秘的状态。</p>
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<p style="text-align: justify; text-indent: 2em;">一起跟随记者探索白洞天坑，探秘神秘世界，感受投身大自然怀抱的感觉。</p>
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<p style="text-align: justify; text-indent: 2em;">记者：覃广华 李欢 金皓原</p>
<p style="text-align: justify; text-indent: 2em;">新华社音视频部制作</p><p id="issueTime" style="display:none;">1714964875000</p><script>;(function(){if(!navigator.userAgent.match(/iphone|ipod|ipad|android/gi)){return}const bodyW=document.body.clientWidth;const iframes=document.getElementsByTagName('iframe');if(iframes.length>0){for(let i=0;i<iframes.length;i++){if(iframes[i].getAttribute('audioid')){iframes[i].src=iframes[i].src.replace('audio.html','audio-hbrb.html');iframes[i].width=bodyW;iframes[i].height=(bodyW*55)/271;iframes[i].style.display='inline-block'}else{const width=iframes[i].getAttribute('width');const height=iframes[i].getAttribute('height');if(width&&height){const videoH=parseInt((bodyW*height)/width);iframes[i].width=bodyW;iframes[i].height=videoH}}}}})();</script>