Americans usually give a reason when they have to say _n__ to an invitation.
问题描述：
Americans usually give a reason when they have to say _n__ to an invitation.
答
答案： no
祝你学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢!什么含义？整句意思：当美国人不得不对邀请说不时，通常会给出原因