商务便装的英文：
Business Casual
n. 商业，交易，生意；公司，商店；事情；职责
Be engaged in; be Busy in
从事于
to sit for business
因公滞留
As Busy as a bee
(象蜜蜂)忙忙碌碌的
Monkey Business
耍些骗人的把戏、捣鬼
depressed business
不景气的生意
adj. 偶然的；随便的，非正式的；临时的
casual employment at a factory;a casual correspondence with a former teacher.
工厂的临时雇佣人员；与先前老师的不定期通信
A casual saunter around the shops.
逛商店。
He endued with casual dress.
他穿着便服。
To discuss in a casual or frivolous manner:
以漫不经心或琐碎的方式议论。
He acted as a casual browser.
他扮演一个闲逛的人。