### 1第三课语法.avi **Size** 23403642 B **MD5** bd42470930d8a0d75e5fc29a6cecad82 **SHA1** 64d0d1c7eaa48abad66615e908ee68b14a0f70ec ### 2第三课课文.avi **Size** 20852478 B **MD5** 2bb962a909e917f1de395f3087e9c303 **SHA1** 36775629d45587a0a133d68c04c88cf394d9579c ### 3第三课拓展.avi **Size** 20928210 B **MD5** ac8ba92575ad9a2080316637cca9b925 **SHA1** cae500188260215881dd9f0da189845fb41dbf99