1、look up

（在參考書、列表等中）查檢（事實或信息）

I looked your address up in the personnel file.

我在人事檔案里找到了你的地址。

Many people have to look up the meaning of this word in the dictionary.

這個詞的意思很多人都要查字典才知道。

拜訪，探訪，看望（久未見面的人）

I'll try to look him up, ask him a few questions.

我會設法登門拜訪，問他幾個問題。

She looked up some friends of bygone years.

她去看望了一些過去的老朋友。

改善；好轉

Things could be looking up in the computer industry.

計算機行業的情況可能會好轉。

2、break into

強行進入；闖入

There was no one nearby who might see him trying to break into the house.

附近沒有人可能會看見他試圖闖入房子里。

In this country a house is broken into every 24 seconds.

在這個國家每24秒就會有一所房子被人破門而入。

突然開始做（某事）

The moment she was out of sight she broke into a run.

她一走出眾人的視線就開始飛奔起來。

Then, breaking into a smile, he said, I brought you something.

然后，他忽然露出笑容，說道：“我給你帶了一樣東西。”

成功打入，順利進入

She finally broke into films after an acclaimed stage career.

她在取得舞臺生涯的成功后，最終進入電影界發展。