209. come off duty 下班　

208. be due to 是由于　

207. in doubt(=in a condition of uncertainty)对…表示疑惑　

206. without doubt (=undoubtedly)无可置疑地　

205. have…to do with 与…有关系　

204. do away with(=get rid of; abolish; discard eliminate) 除去,废除,取消; do away with (=kill) 杀掉, 镇压　

203. distinguish…from 把…与…区别开　

202. distinguish between (=make or recognize differences) 辨别　

201. (be) distinct from ( = be different from) 与…截然不同　

200. in the distance 在远处. make out 辩认出