201.have……to do with 与……有关系
202.without doubt (=undoubtedly) 无可置疑地
204.(be) distinct from ( = be different from) 与……截然不同
205.distinguish between (=make or recognize differences) 辨别
206.distinguish……from 把……与……区别开
207.do away with (=get rid of; abolish; discard eliminate ) 除去，废除，取消; do away with (=kill) 杀掉，镇压
208.be due to 是由于
209.come off duty 下班
210.go on duty 上班