306. take a message for sb 给某人捎个口信
305. take an underground 乘地铁
304. such as 例如
303. stop…from 阻止……做
302. speed up 加快速度
301. sooner or later 迟早
300. some day 将来有一天
299. so as to 为的是;使得
298. shut up 住口
297. show sb. around 带某人参观