问题描述：
如题
究竟用单数还是复数呀？
问题解答：
a couple wants to travel abroad.
ths couple wants to travel abroad
当然是用单数！
A couple want to go abroad for a holiday
couple 本来就表示 一对
只有一对当然是单数
两对就复数
A couple wants to travel abroad.
A couple plans to travel abroad.
A couple wants to travel abroad.
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