She began to count up how many guests they had to invite.

她开始计算他们得邀请多少位客人。

《牛津词典》

How many guests who expect clean towels every day in an hotel launder their own every day at home?

旅店里希望每天有干净毛巾的客人中，有多少人每天在家洗自己的毛巾呢？

《柯林斯英汉双解大词典》

How many guests can I bring with me?

我可以带几个客人来？

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