casualsn.便服；临时工（casual的复数形式）casualadj.非正式的；漫不经心的；偶然的；临时的；休闲的n.便装；临时工Casual or lounging attire.穿衣随便，穿着邋遢Casualties Collecting Station伤病员收容站casual employment at a factory工厂的临时雇佣人员casualties are now tapering off目前,伤亡人数在逐渐减少。casualness in use of language.运用不正式的语言，使用俚语。casual clothes for everyday wear平时穿的休闲服Casualties are now tapering off.目前，伤亡人数在逐渐减少。casual words that proved prophetic.被证明为预言性的不经意的话Casualties numbered in the thousands.伤亡数以千计。casually thoughtless or inconsiderate.随便、欠考虑或者草率。