used 後加什麼？

Her article is a discussion of the methods used in research.

她這篇文章論述的是研究中使用的方法。

This is one of the most commonly used methods.

這是最常採用的.方法之一。

We're used to the noise from the traffic now.

現在我們已經適應車輛往來的噪音了。

All I know is that she used to work in a bank.

我只知道她曾在銀行工作過。

Things ain't what they used to be.

現在情況不比從前了。