I think that this is an exceptional case.

我认为这是一个例外的情形。

youdao

This is an exceptional case; I've never seen anything like it before.

这是一个特例，我以前从未见过有这样的事情发生。

youdao

Astronomers don't know if this is an exceptional case or if most massive elliptical galaxies actually formed so early in the universe's history.

天文学家目前尚不清楚，出现这样巨大的椭圆形星系是个特例还是宇宙早期的遍现象。

youdao

Not every campaign gift requires a judge's recusal, the court said, "but this is an exceptional case."

VOA: special.2009.06.12

"This is an exceptional case, " the tribunal wrote in its verdict, declaring that the public interest in learning how the government made its decision outweighed the need to keep government discussions confidential.

CNN: Blair 'not concerned' over release of Iraq secrets

Unfortunately this is not an unusual or exceptional case.

FORBES: Are you a complexity creator?

This is -- as he has said and others have said -- an extraordinary situation and an exceptional case.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney,