cave;cavern;corrie ;

If you go into the cave without waiting for the guide, you do it at your own risk.
如果你不等导游带领而进入山洞, 你就得自担风险.
来源:互联网The pirates would often bury gold in the cave and then failed to collect it.
海盗常把金子埋藏在山洞里,而后来又没能取走.
来源:《用法词典》
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