exchanged

基本解释

14世纪晚期进入英语，直接源自盎格鲁法语的eschaunge；最初源自古典拉丁语的excambire：ex (出) + cambire (以物易物），意为互相交换。

exchange的基本意思是“交换”,可以表示以贸易手段以一物换取另一物; 也可指一般的一物与另一物相交换; 有时还指在两个或更多人之间换东西。引申可表示“交流”经验、思想等。
exchange既可用作不及物动词,也可用作及物动词。用作及物动词时,接名词或代词作宾语,且所接的名词一般为复数。
exchange宾语后常接介词for,表示“以…换取”; 接介词with表示“与某人交换(某物)”。
exchange后可接单数或是复数，一般在行动上，会有单数形式出现。They exchanged caps. 他们俩交换帽子。They exchanged a smile. 他们俩交换笑容。
exchange...with表示“和某人交换某物”，而exchange...for则表示“以某物换取某物”；
in exchange for表示“交换，对换”，常用于give/get/receive后。I should like to give my pen in exchange for yours. I should like to get/receive your pen in exchange for mine.
注意exchange本身包含交换的意思，避免和同类含义的词搭配，如mutual exchange，exchange mutually，exchange with each other和exchange together都不属于正确用法。

There have been numerous exchanges of views between the two governments.
两国政府间曾多次交换意见。

If two or more people exchange things of a particular kind, they give them to each other at the same time.
Exchange is also a noun.
If you exchange something, you replace it with a different thing, especially something that is better or more satisfactory.
An exchange is a brief conversation, usually an angry one.
An exchange of fire, for example, is an incident in which people use guns or missiles against each other.
An exchange is an arrangement in which people from two different countries visit each other's country, to strengthen links between them.
&rarrsee also foreign exchange , stock exchange
If you do or give something in exchange for something else, you do it or give it in order to get that thing.