摘要：778] We had a hard life in my childhood. [译文] 在我童年的时候.我们曾经一度生活很艰难. A. at a time B. at all times C. at one time D. at any time [答案及简析] A. at a time曾经一度, at all time总是, at one time 先前.以前,at any time任何时候.

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