基本解釋探坑[洞]的人 -ling同根派生 potholer相關(guān)詞英漢例句Precautions of this sort are necessary, for it is impossible to foretell the exact nature of the difficulties which will confront the potholer.這種謹慎是必要的，因爲洞穴勘探家將要麪臨的睏難的性質(zhì)， 是不可能預(yù)見的。potholer更多例句