【简介】感谢网友“雕龙文库”参与投稿，这里小编给大家分享一些，方便大家学习。
Common Prefixes
dis - not
pro - for, supporting
re - to do again
self - used to show that the person or group acting is the one affected by the action, or to show that the action is done only by its own effort or power
un - not
Common Expressions
carry out - to do; to put into effect
pass a bill - approve
take steps - to start to do something
