听力音频： WS 057听力音频 https://mp.weixin.qq.com/s?__biz=Mzg3MTg0NDM1Ng==&mid=2247503206&idx=5&sn=a7307c199d5812e5ccbd9547acff3ce1&chksm=cefad20df98d5b1b82146f4...

WS 015Set2Lecture2

WS 021Set 28 L1

WS 028C1

WS 017Set 220 L1

听力音频： WS 053听力音频 https://mp.weixin.qq.com/s?__biz=Mzg3MTg0NDM1Ng==&mid=2247503206&idx=1&sn=aeb53dce9343f9e9fdff246c91648882&chksm=cefad20df98d5b1bc1cbe70...

WS 017Set 87 L2

WS 023L2

WS 020Set 1 L2

WS 016Set 293 C2