shows that a particular thing always happened or was true in the past, especially if it no longer happens or is no longer true

She used to live in Glasgow. 她曾在格拉斯哥住过。

She used to love dancing, but she doesn't do it any more. 她曾经喜爱跳舞，但现在已经不跳了。

You don't come and see me like you used to. 你们不像过去那样经常来看我了。

When we were younger, we used not to be allowed to drink coffee. 我们小的时候是不让喝咖啡的。

to be familiar with something or someone

We're used to tourists here - we get thousands every year. 我们这儿见惯了游客——每年都有几千人来。

[ + -ing verb ] She was not used to speaking Cantonese. 她不习惯说广东话。

to become familiar with something or someone

Eventually you'll get used to the smells of the laboratory. 最终你会习惯实验室的气味。

[ + -ing verb ] I just can't get used to getting up early. 我就是不习惯早起。

that has already been put to the purpose it was intended for; not new

a used airline ticket 一张用过的飞机票

The blackmailers demanded to be paid in used £20 notes. 勒索者们要求用旧的20英镑面额的钞票支付。

I could only afford a used car (= one that has already been owned by others). 我只买得起二手车。