She did not have enough nurses to cover for those who were sick.

她没有足够的护士来代替她们生病的同事的工作。

《柯林斯英汉双解大词典》

She's not really sick—she's just faking it.

她并不是真的病了，不过是假装的。

《牛津词典》

They are not eligible for sick pay.

他们没有资格领病假工资。

《柯林斯英汉双解大词典》

In November of that year, New York Philharmonic conductor Bruno Walter became sick and could not conduct an important concert.

VOA: special.2009.08.02

You can't eat that much candy and not feel sick.

你吃了那么多糖，肯定会难受的。

I should have 实战 - SpeakingMax英语口语达人

Children's doctors say patients up to age nineteen should not take anything containing Salicylatic products when sick with high temperatures.

VOA: special.2010.12.14

Asia was not sick, and did not feel particularly sick.

CNN: Sign-off 1998

"History shows that an awful lot of people will take those days whether they're sick or not, " Mr. Bloomberg said.

WSJ: New City Law Requires Paid Sick Days for Workers

The mayor also advised sick people not to go to work or school, and Massachusetts Governor Deval Patrick reminded residents that common sense measures like washing hands and sneezing into their sleeve can help.

BBC: Most of US gripped by flu outbreak