It would be an exaggeration to say I knew her well—I only met her twice.

说我非常了解她不免言过其实—我只见过她两次。

《牛津词典》

"If you knew time as well as I do," said the Hatter, "you wouldn't talk about wasting it."

“如果你也像我一样懂得时间，”帽商说，“你就不会说浪费时间了。”

youdao

Besides driving well, the most important thing a taxi driver needs to know is the streets, and I knew the city well because I had lived in it for a long time.

除了良好的驾驶技术，对出租车司机来说最重要的就是要了解城市的街道。我很了解这座城市，因为我在这里住了很长一段时间。

youdao

I say I knew it well. I knew what the old man felt, and felt sorry for him, although I laughed to myself.

VOA: special.2009.05.16

I knew the sound well. Many a night,late at night, when all the world slept, it has welled up from deep within my own chest.

VOA: special.2009.05.16

I knew that sound well,too. It was the beating of the old man's heart.

VOA: special.2009.05.16

When I wrote to you at Glasgow (which letter I have heard was sent too late) I did not forget your former grief, but I did not allude to it, as I well knew that it was wrong in me to revive your former feelings, but I could not resist writing to you.

BBC: Charles Darwin letters reveal his emotional side

"I was blowing it foul, but I knew he hit it pretty well, " Harvey said.

NPR: Harvey No-Hits Twins Into 7th As Mets Win 4-2

And I knew full well that it would take a lot of luck to get it done in the hours I projected.

FORBES: Your Project Failed? Don't Blame Microsoft. Blame Me.