casing

例句

Sam is casing the joint now. He's going to give us a report soon.n薩姆現在正在偵察現場，他很快就會向我們報告情況的。nAn oxygen mask will come down from overhead in case of an emergency.n若發生緊急情況，頭頂上會降下一隻氧氣面罩。

解釋

套；罩；匣；盒；[經](石油)套管；包裝，動詞case的現在分詞。