on line: 在线

Eg. Are on line retailers crazy?

在线零售商们是不是疯了？

Eg. The computer always takes such a long time to come on line .

这部电脑的开机启动经常要花很长的时间。

hold on: 等一下

Eg. Just a moment, I'll connect you. Hold on, please."

请稍候 ，我为你转接。请不要挂断。

set up: 建立，创立

Eg. The two sides agreed to set up a commission to investigate claims.

双方同意成立一个委员会，调查索赔问题。

ask for sb: 邀请

Eg. Did anyone ask for me? Yes there was a gentleman here asking for you this morning

有人找过我吗？有，今天上午有位先生要求见你。

dress up: 打扮，装饰

Eg. She dress up in Elizabethan costume for the fancy-dress ball.

她穿上伊丽莎白的服装去参加化妆舞会。