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1·I visited once or twice.

我参观过一两次。《柯林斯英汉双解大词典》

2·He visits Paris once or twice a month.

他一个月去一两次巴黎。《牛津词典》

3·We go there maybe once or twice a month.

我们每月大概去那里一到两次。《牛津词典》

4·I don't know her well, I've only met her once or twice.

我跟她不很熟；我只见过她一两次。《牛津词典》

5·Turn the shanks and baste them once or twice as they cook.

将小腿肉翻一下，烹调时在上面淋上一两次油。《柯林斯英汉双解大词典》

6·Keaton comes here once or twice a year to soak up the atmosphere.

基顿每年来这里一两次，感受这里的氛围。《柯林斯英汉双解大词典》

7·Once or twice she had caught a flash of interest in William's eyes.

有一两次，她捕捉到威廉眼中一闪的关注。《柯林斯英汉双解大词典》

8·We gather as a group once or twice a year, for old times' sake, and get loaded.

为了过去的时光我们每年都会聚一两次，并喝得大醉。《柯林斯英汉双解大词典》

9·Once or twice I heard her muttering, but when I said, Sorry? What did you say? she didn't respond.

有一两次我听见她在嘀嘀咕咕，但当我说“抱歉? 你说什么？”时，她没有回答。《柯林斯英汉双解大词典》

10·We are supposed to do exercise once or twice a day to keep healthy.

我们应该每天锻炼一两次以保持健康。