问题描述:
用and还是or,1.We have no classes on Saturday and Sunday
下面两句中的and是否需要改为 or,
1.We have no classes on Saturday and Sunday 2.We don't have classes on Saturday and Sunday
下面两句中的and是否需要改为 or,
1.We have no classes on Saturday and Sunday 2.We don't have classes on Saturday and Sunday
问题解答:
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