He is not well off, only he seems such.

他境况并不好，只是看起来倒不错。

youdao

He is not well today.

今天他身体不舒服。

youdao

He is not well today, but he still comes to class.

他今天身体不好，但(他)还是来上课了。

youdao

A student who tells you his grades have hit bottom is saying he has not done well in school.

VOA: special.2009.09.20

A man who is living in a polis not doing well, how can he be happy? There's just no way.

一个生活在城邦里的人没有做好本分,他怎么会幸福,这是不可能的事情

耶鲁公开课 - 古希腊历史简介课程节选

One of them, his name is Gil, he is very... he knows his math, well, that's not the right way to put it.

其中一位教授名叫吉尔，他十分……他对数学有两把刷子，嗯，这个描述不是很恰当。

有印象的教授 - SpeakingMax英语口语达人

He is not well-connected in business and politics, unlike his counterpart at Credit Suisse, Walter Kielholz, who is also vice-chairman of Swiss Re, a big reinsurer.

ECONOMIST: Face value

But despite his many years in the Senate, he is not as well-versed in foreign policy as Mr. Clinton is now.

CNN: Election Watch

Sato says he is not coping well with her loss and the only way he can find peace is to learn exactly what happened to his common-law wife.

CNN: STORY HIGHLIGHTS