raise a few eyebrows 既用法

raised a few eyebrows =使一些人感驚訝
to raise your eyebrows= to move your eyebrows upwards in order to show surprise or disapproval.
e.g "Reallr?" she said, raising her eyebrows.
e.g.This decision caused a few raised eyebrows = this decision raised a few eyebrows這决定令一些人感到驚訝。
(= surprise some people)

中文有很貼切的現成翻譯句子：令人側目

可以參考以下綱址：
http://idioms.thefreedictionary.com/raises+eyebrows

[raise a few eyebrows] 係形容他人對某一個行為或言論嘅反應，包括驚訝，不認同，或輕微反感。

例子：
(1) 驚訝
For the first few days after Tom started University, his presence always raised a few eyebrlows, because he was only thirteen.

(2) 驚訝 / 不認同
Peter Lam's showing up at work as Mary Lam last week raised a few eyebrows. People are still talking and some female co-workers expressed uneasiness in sharing the washroom with her.

(3) 輕微反感
The shoe throwing incident in the Executive Council had raised a few eyebrows.