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at that time [] 1
在当时
参考例句
1.We were in the same college, which was male-only at that time. 我们那时在同一所学院,当时只招男生。 来自柯林斯例句
2.At that time my mother took in paying guests. 那时候,我妈妈接待房客。 来自柯林斯例句
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