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　　001-Unit_1_Section_A_1a-2d.mp4

　　002-Unit_1_Grammar_Focus,_Section_A_3a,Self-check.mp4

　　003-Unit_1_Section_B_1a-1f,Section_A_3b-3c.mp4

　　004-Unit_1_Section_B_2a-2c.mp4

　　005-Unit_1_Writing.mp4

　　006-Unit_2_Section_A_1a-2d.mp4

　　007-Unit_2_Grammar_Focus,_Section_A_3a-3c,Self_Check_2.mp4

　　008-Unit_2_Section_B_1a-1e.mp4

　　009-Unit_2_Section_B_2a-2c.mp4

　　010-Unit_2_Self_Check_1,_Writing.mp4

　　011-Unit_3_Section_A_1a-2d.mp4

　　012-Unit_3_Grammar_Focus,_Section_A_3a-3c,_Self_Check.mp4

　　013-Unit_3_Section_B_1a-1e.mp4

　　014-Unit_3_Section_B_2a-2c.mp4

　　015-Unit_3_Writing.mp4

　　016-Unit_4_Section_A_1a-2d.mp4

　　017-Unit_4_Section_A_3a-3b,_Self_Check_2.mp4

　　018-Unit_4_Section_B_1a-1c,_Self_Check_1.mp4

　　019-Unit_4_Section_B_2a-2c.mp4

　　020-Unit_4_Section_B_3a-3c.mp4

　　020-Unit_6_Section_B_3a-3b.mp4

　　021-Unit_5_Section_A_1a-2d.mp4

　　022-Unit_5_Section_A3a-3c,_Self_Check_2.mp4

　　023-Unit_5_Section_B_1a-1d,_Self_Check_1.mp4

　　024-Unit_5_Section_B_2a-2c.mp4

　　025-Unit_5_Writing.mp4

　　026-Unit_6_Section_A_1a-2d.mp4

　　027-Unit_6_Section_A_3a-3c,_Self_Check_2.mp4

　　028-Unit_6_Section_B_1a-1c,_Self_Check_1.mp4

　　029-Unit_6_Section_B_2a-2c.mp4

　　030-Unit_6_Section_B_3a-3b.mp4

　　031-Unit7_Section_A_1a-2d，Self_Check_2.mp4

　　032-Unit7_Section_A_3a-3b.mp4

　　033-Unit7_Section_B_1a-1e，Self_Check_1，3.mp4

　　034-Unit7_Section_B_2a-2c.mp4

　　035-Unit7_Section_B_3a-3c.mp4

　　036-Unit_8_Section_A_1a-2c.mp4

　　037-Unit_8_Section_A_2d-3c.mp4

　　038-Unit_8_Section_B_1a-1d,_Self_Check_3.mp4

　　039-Unit_8_Section_B_2a-2c.mp4

　　040-Unit_8_Writing.mp4

　　041-Unit_9_Section_A_1a-2d.mp4

　　042-Unit_9_Grammar_Focus.mp4

　　043-Unit_9_Section_B_1a-1e.mp4

　　044-Unit_9_Section_B_2a-2c.mp4

　　045-Unit_9_Writing.mp4

　　046-Unit_10_Section_A_1a-2d.mp4

　　047-Unit_10_Grammar_Focus,_Section_A_3a-3c.mp4

　　048-Unit_10_Section_B_1a-1d.mp4

　　049-Unit_10_Section_B_2a-2c.mp4

　　050-Unit_10_Writing.mp4

　　051-Unit_11_Section_A_1a-2c.mp4

　　052-Unit_11_Section_A_3a-3b,_Self_Check.mp4

　　053-Unit_11_Section_A_2d,_Section_B_1a-1d.mp4

　　054-Unit_11_Section_B_2a-2c.mp4

　　055-Unit_11_Writing.mp4

　　056-Unit_12_Section_A_1a-2d.mp4

　　057-Unit_12_Section_A_3a-3c.mp4

　　058-Unit_12_Section_B_1a-1e，Self_Check_2.mp4

　　059-Unit_12_Section_B_2a-2c.mp4

　　060-Unit_12_Section_B_3a-3b，Self_Check_1.mp4