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他把手帕盖在脸上挡苍蝇。
He spread his handkerchief over his face to keep off flies.
youdao
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抓住仪器盖把手往下压——关闭样品腔。
Grasp the cover and press downwards — close the sample chamber.
youdao
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抓住仪器盖把手往下压——关闭样品腔。
Grasp the cover and press downwards — close the sample chamber.
youdao