考研必備：考研寫作1500詞
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
