[00:01.44]我在美国旅行 [00:02.87]Useful Expressions [00:03.81]常用语句 [00:04.75]1.Cheap things are not always good. [00:07.52]便宜的东西不见得都是好货。 [00:10.29]2.It takes a long time to learn English. [00:13.45]学英语要花...
