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[00:00.00]Module4Bicycle
[00:03.89]Invent
[00:06.67]发明
[00:09.46]Paper
[00:12.58]纸
[00:15.70]Important
[00:19.49]重要的
[00:23.28]Printing
[00:26.31]印刷术
[00:29.34]Print
[00:32.65]印刷
[00:35.97]Bicycle
[00:40.10]自行车