It all brought back memories of a not very edifying past.

所有这些都让人回想起一段不是很令人愉快的过去。

《柯林斯英汉双解大词典》

The problem is that the compound has mixed effects in the brain, a not unusual occurrence with psychoactive drugs.

问题在于，这种化合物对大脑有混合作用，这种情况在服用精神药物时并不少见。

youdao

The production costs are a not inconsiderable $8 million.

生产成本相当大，高达八百万美元。

《柯林斯英汉双解大词典》

Washington,D.C. is the country's capital but it is a city,not a state, so it does not have its own star.

VOA: special.2010.04.02

Well,I'm a not an especially interesting fellow.

鉴于我不是个特别有趣的家伙。

耶鲁公开课 - 死亡课程节选

I was born in South East London in a not very nice place.

我出生在伦敦东南区一个不太好的地方。

去泰特现代美术馆 - SpeakingMax英语口语达人

The week of her court hearing, days after entering a not-guilty plea, Dunn began a round of chemotherapy.

FORBES: When Illness Strikes

Observers recall a not particularly impressive political figure, who nonetheless proved himself an adept administrator.

BBC: Profile: Nawaz Sharif

The bureau, based at London's City University, is an independent body and a not-for-profit operation.

BBC: Profile: Bureau of Investigative Journalism