Many members of the church sang from memory.

许多教徒都是凭记忆唱颂歌。

《柯林斯英汉双解大词典》

He can recite that poem from memory.

他能凭记忆背诵出那首诗。

youdao

She can recite the whole poem from memory.

她能背诵全诗。

《牛津词典》

But learning so much of it in such a short time, that's a big scramble -- and they have to know it from memory."

VOA: special.2011.07.11

So now let me recreate this program from memory.

现在我们在脑子里再过一遍这个程序。

哈佛公开课 - 计算机科学课程节选

The repetition of symbols was to be enough, without trauma, as well, perhaps, to attenuate it, or even jar it altogether loose from her memory.

象征的重复快要足够，即便没有可能的从她记忆中流出的创伤，去减弱它去刺激它。

耶鲁公开课 - 1945年后的美国小说课程节选

Asteroid strikes and nuclear war are, from memory, two of the examples he uses.

FORBES: Nature on Uncertainty: Climate Change is Less Important Than We Thought

Natural disasters tend to fade from memory as scenes of destruction slip from prominence in the media.

ECONOMIST: In Katrina's wake

In 2009, he'd worked from memory and flubbed the wording, requiring a private do-over the next day.

NPR: The Inaugural Do-Over: Chomping Gum, Savoring View