46.82 MB
04.会话课：Respondingtosuggestions委婉回复建议.flv2022-09-20
49.74 MB
03.基本课2：Giveadviceandsuggestions礼貌给出建议.flv2022-09-20
97.17 MB
02.基本课1：Gettingreadyforatrip为旅行做准备.flv2022-09-20
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01.预习.flv2022-09-20
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