I learn of their menu, their hours, whatever they want to put on their receipt they can put there.

我了解他们的菜单，他们的时间，他们想在收据上写什么就写什么。

I learn of their Yelp account.

我知道了他们 Yelp 的账户。

I was deeply grieved to learn of mother's death.

得到母亲去世的消息，我很悲痛。

Will you never learn of the great deeds of your ancestors, you foolish boy?

你就不能像你的祖先一样，做出美好的德行吗，你这个愚蠢的孩子？

How will you learn of the larger world outside your own personal experience?

你怎么学习自己没经历过的外面的世界呢？