【初学者英语听力】21（在线收听）
a. The doctors are performing surgery
b. The doctors are washing their hands
c. The doctors are not wearing masks
d. The doctors are in a meeting
图片1
【初学者英语听力】21（在线收听） |
a. The doctors are performing surgery b. The doctors are washing their hands
c. The doctors are not wearing masks
d. The doctors are in a meeting
图片1 |
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