exchange A for B; exchange sth (with sb) give or receive sth/sb in place of another 交换; 互换; 调换; 更换:
He exchanged the blue jumper for a red one.他把蓝毛衣换成了红的.
an exchange of glances 互使眼色 an exchange of houses 调换房屋
An exchange of opinions is helpful.
相互交换意见是有益的.