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经常看见他从早到晚在实验室紧张地工作。
He is often seen to work tensely in his laboratory from morning till night.
youdao
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他很疲倦是因为他今天整天都在很紧张地工作。
He's very tired because he worked hard all day today.
youdao
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他很疲倦是因为他今天整天都在很紧张地工作。
He's very tired because he worked hard all day today.
youdao