它的新的指导意见说，选择饮酒的孕妇应该限制她们的摄入量到一或两个单位，一周一或两次。
Its new guidance says that pregnant women who choose to drink should limit their intake to one or two units, once or twice a week.
如果你喜欢看电影，一周一次或一个月两次，这是很好的娱乐方式。
Once a week or twice a month, it is good entertainment, if you like watching movies.
一周一次或两次将更改合并到文档中和新的印刷文档中。
Once or twice a week the changes can be incorporated into the document and a new one printed.
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