The brown hyena and aardwolf are not known to prey on humans.

尚不知道棕色的鬣狗和土狼会捕食人类。

youdao

The market situation is not known to us.

我们还不了解市场情况。

youdao

Mr Zuma is not known to be fond of hara-kiri.

众所周知，祖玛先生并不是个特别喜欢自己认罪道歉的人。

youdao

Today,wildcat oil wells are in areas that are not known to have oil.

VOA: special.2009.11.08

That was obviously not known to Newton.

显然,牛顿不知道这个

耶鲁公开课 - 基础物理课程节选

Truth is something to be embodied in Yeats, embodied rather than known; embodied in the sense of lived, not merely understood but experienced.

真理是叶芝要表现的，表现而不是理解，通过存活,表现，不仅是理解而是体验。

耶鲁公开课 - 现代诗歌课程节选

Banerjee herself is a mercurial leader and not known to be a great administrator.

FORBES: Magazine Article

It is not known to cause illness in humans or any other animals, including pigs.

FORBES: Magazine Article

While drinking soda is not known to cause ulcers, it can cause symptoms to flare up.

CNN: Is drinking soda really that bad for you?