And I could only call the handful of Numbers that I know by heart.

而且我只能拨打我记得住的为数不多的一些电话。

youdao

There is hardly a corner, hairpin or chicane that we do not know by heart.

记忆中几乎没有我们尚未亲身体验过的弯道、急转弯或赛道。

youdao

I've dialled the number so many times I know it by heart.

这个号码我拨了很多次，都记住了。

《牛津词典》

He wants to know if they are the same men who so callously broke their father's heart by selling Joseph, his father's favorite, so many years ago.

他想知道他们是否还是老样子,就像他们曾经卖了约瑟夫，伤了他们父亲的心，多年前，约瑟夫最受父亲宠爱。

耶鲁公开课 - 旧约导论课程节选

But in your heart you know it can't be done by today.

但你心里清楚今天是不可能做完的。

I don't know 课堂 - SpeakingMax英语口语达人

Second thing, we started talking about the periodic table and I believe that it's a hallmark of any educated person in the 21st century who is technically literate to know the periodic table by heart.

第二点，我们之前讨论过元素周期表,我相信这是个标志性的特征,对于那些在21世纪里,用心去学习,元素周期表的人来说。

麻省理工公开课 - 固态化学导论课程节选

At a college dance, we are told that the Dear Leader also wrote the songs and invented the moves that all the students know by heart.

BBC: On holiday in North Korea

He should have been doing it enough to know it by heart.

WSJ: How to Become a Pro Point Guard

And to this day, I still know it by heart.

CNN: Apparently This Matters: R.I.P., 'Gangnam Style'