We exchanged pleasantries shortly after she got there and then, later on, we exchanged unpleasantries.

她進門后我們進行了友好的寒暄 晚些時候我們進行了不友好的交談

In fact, I would go so far as to say that every force is an exchange of particles, and gravity is an exchange of gravitons.

事實上 我甚至認為 所有力都是通過粒子交換而產生的 引力就是通過引力子交換而產生的

But in exchange, I did things for him.

但作為交換 我就得為他辦事

We drive to the exchange from there.

然后我們從那里開車去交易地點

in exchange for his silence. I'm not doing that.

換他閉嘴 我不會答應的

I'd exchange those ferns for some cacti.

我會把那些蕨類換成仙人掌

There will be no more merchants, no more exchanges.

不會再有商人 也不會再有交易了

I'll take that wordless exchange as a no.

我就把這種無言的交流當做"沒有"了

This is how both sides have agreed to do the exchange.

這是雙方同意交換戰俘的關鍵

That's when the neighbors do the cookie exchange.

那時候鄰里之間要交換餅干的