casing

例句

Sam is casing the joint now. He's going to give us a report soon.n萨姆现在正在侦察现场，他很快就会向我们报告情况的。nAn oxygen mask will come down from overhead in case of an emergency.n若发生紧急情况，头顶上会降下一只氧气面罩。

解释

套；罩；匣；盒；[经](石油)套管；包装，动词case的现在分词。