英語翻譯：

collate; investigate; survey

例句：

1. 這種謹(jǐn)慎是必要的，因?yàn)槎囱?em>勘探家將要面臨的困難的性質(zhì)，　是不可能預(yù)見的。
   Precautions of this sort are necessary, for it is impossible to foretell the exact nature of the difficulties which will confront the potholer.