### 137_1_语法(一)_重读人称代词.mp4 **Size** 39286360 B **MD5** a174ec293d01872e17f221650dc6afa9 **SHA1** b2181f8878512e2b4b67500cdea3cae9640c6b30 ### 137_2_语法(二)_介词_国名或城市名.mp4 **Size** 48415640 B **MD5** ca5615a63b45c782d4ba108da2feab39 **SHA1** 6e950bb8a66ecc0595b7228bec68da4e9302b51d ### 137_3_语法（三)_频率副词与强度副词.mp4 **Size** 25152144 B **MD5** e07c710c2dd6f6be3a55554102bb6515 **SHA1** 4d1f8f3d2050165ff7466d18e922ca2e30c936be ### 138_1_实用单词.mp4 **Size** 22085864 B **MD5** 48f10012555123d116869c423950df07 **SHA1** 8f4c2a654a9df3f72712f638130c7b21a8da6dea ### 139_1_情景交际.mp4 **Size** 60323936 B **MD5** 2c7433602a64467d38f57d650ee76106 **SHA1** bc11a8cbb73d54913f842d14e8658c8b2f409357