在纸片棉线轴洞的位置打个洞，这个洞贯穿了纸片、棉线轴和硬纸板，洞内没有其他遮挡物。
Punch a hole in the middle of the paper cover where the hole of the spool is. Now your hole should run through the paper, spool, and cardboard without any obstructions.
一个洞内只有一只螃蟹，除繁殖期以外它们都是孤独的，并且不能容忍洞中的入侵者。
Only one crab lives in a burrow and outside of the breeding season Red Crabs are solitary, and do not tolerate intruders into their burrows.
再往上，我们见到了洞内的镇洞之宝——“穹凌雪钟”。
" Further, we see the inside hole of the treasures of the town - "Dome bell.
位于卯洞峡下游金龙滩峡谷的间歇泉、自生桥、凉风洞等，是旅游观光的好地方，特别是西岸的玉龙洞，洞内千奇百怪，绵延数里。
Scenics in Jinlong Gorge, like Jianxie Spring, Inborn Bridge and Cold Wind Cave are nice place to go sightseeing. Especially the ever-changing spots in Yulong Cave wind miles inside.
为此，在隧道进口设置长约4700 m的泄水洞，以泄出溶洞内高压水，保证隧道施工及运营安全。
For ensuring the safety of construction and traffic, a 4700 m-drainage tunnel was built to release the karst water in the Maluqing tunnel.
为此，在隧道进口设置长约4700 m的泄水洞，以泄出溶洞内高压水，保证隧道施工及运营安全。
For ensuring the safety of construction and traffic, a 4700 m-drainage tunnel was built to release the karst water in the Maluqing tunnel.
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