It's very different to what I'm used to.
这与我所习惯的大不相同。
We're used to the noise from the traffic now.
现在我们已经适应车辆往来的噪音了。
All I know is that she used to work in a bank.
我只知道她曾在银行工作过。
Things ain't what they used to be.
现在情况不比从前了。
You used to see a lot of her, didn't you?
你过去常见她吧？