23 篇文章
when cavers dug through several metres of loose rock
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when cavers dug through several metres of loose rock 洞穴专家们在松散的岩层中 挖出了一条几十米深的通道

The source of these toxic fumes lies several miles below.
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The source of these toxic fumes lies several miles below. 这些毒气的源头位于地下几英里处

The salamander might not encounter food for several months,
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The salamander might not encounter food for several months, 童态河溪螈可能 已有几个月没有吃东西了