Had he but known it, he was following the right course with her.

其实若是他知道的话，他的这条路倒是恰如其分。

youdao

His father had threatened disinheritance, but both men had known it was an empty threat.

他父亲威胁要剥夺他的继承权，但是两人都知道这是虚张声势。

《柯林斯英汉双解大词典》

She may be successful now, but she has known what it is like to be poor.

她现在可能成功了，但她尝过贫穷的滋味。

《牛津词典》

The program is named the Car Allowance Rebate System, but known as "cash for clunkers."

VOA: special.2009.08.07

The time was in the early 70s, so factory farming was not well-known, was not as dominated as it is today, but it still existed.

那时是70年代早期，工厂化养殖并不为很多人所知,也不如今天这样占主导地位，但当时已经出现了这种方式。

普林斯顿公开课 - 人性课程节选

So you know, that's not a class that MIT is... subject MIT is typically known for, but we have everything, so...

你知道，麻省理工学院没有什么特别出名的课程，但是我们的课程涵盖一切领域。所以……

求学热十足的学校 - SpeakingMax英语口语达人

This meant that defenses against unknown exploits that target new un-patched but known vulnerabilities could be incorporated.

FORBES: How reputation services enhance IPS

Its texture and chemistry set it apart from all previous objects picked up off the surface of Earth but known to originate on the Red Planet.

BBC: Mars meteorite 'Black Beauty' is in a class of its own

Well hidden in the Latin Quarter but known to Paris expats, Le Coupe-Chou is a maze of seven candlelit rooms snaking through a vine-clad 17th-century townhouse and is overwhelmingly romantic.

BBC: Mini guide to romance in Paris