[00:02.80]第十八单元 办公设备 [00:05.59]Lesson 69 1 Reading comprehension [00:09.12]第六十九课 1 阅读理解 [00:12.64]Read the text fast and choose the right title for each section: [00:15.83]快速朗读课文，在每一片段选出正...
