Is he really sick or is he just shamming?

他真病了，还是装的？

《牛津词典》

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》

I'm really sick of you.

我真的很讨厌你。

youdao

Clara Barton really began her life of caring for the sick when she was only eleven years old.

VOA: special.2009.07.26

I mean foods that really make you sick.

而是那些让你确实感到恶心的食物。

耶鲁公开课 - 心理学导论课程节选

Now I could probably make some of you very sick to your stomach by having you close your eyes and imagine eating a cockroach, and if I really walked through what you'd be experiencing if you did that, you'd be very upset.

如果我让你们闭眼睛想象吃蟑螂,可能会让你们感到恶心,如果我详细给你们讲解一遍,吃蟑螂的过程,你们会被恶心到的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

"I'm getting really sick of those Obama ads sponsored on my Facebook page, " wrote another.

BBC: Barack Obama Facebook campaign sees 'likes' soar

So they waited until they got really sick, then went to free clinics or emergency rooms.

FORBES: Magazine Article

Really sick of bartering, but hard to know how to earn money since the Internet went down.

NEWYORKER: Diary of an Interesting Year