adj.通常的；普通的；常见的；惯例的；正规的

adv.通常；平常；一般

Spoil sth,usu by behaving in a thoughtless or foolish way. 弄乱某事物(通常因粗心或愚蠢的行为所致)。

What sb is playing at(usu expressing anger,irritation,etc. 某人在搞什麽名堂(通常用以表示愤怒、烦躁等)

Rest-cure (usu in bed,as medical treatment for stress,anxiety,etc. 休养疗法(通常须卧床

It was difficult for usu eto decide which road to take. 对我们来说，很难决定走哪一条路。

We've just got time for a quick one, ie a quick (usu alcoholic) drink. 我们的时间不多

Could you do a program on money, banking and shopping for students in the USU. 他们从你们的外国留学生系列中获益匪浅。