Once you know it, you'll have it.

一旦你知道它，你将拥有它。

youdao

Once you know it, you'll care about it.

一旦知道了，你就会在意它。

youdao

Once you know it, you’ll recognize it everywhere – in speeches, statements, proposals, advertisements.

一旦你了解这种方法，你会意识到它到处都存在——在演讲中，陈述中，提议和广告中。

youdao

and they reply in German, "Yes, I'm French," that doesn't--language doesn't necessarily tell you how people feel about their identity. Some sage once said, I don't know who it was, but I love this expression, that a language is a dialect with a powerful army.

然后他们用德语回答,"我是法国人",不一定--语言不一定能代表,对自己的身份认同,有个哲人说过,我忘了是谁,但我特喜欢这句,说语言就是有强大军队撑腰的方言

耶鲁公开课 - 1871年后的法国课程节选

And once you know how it sounds, making those sounds for yourself would be a lot easier to do.

一旦你知道该怎么发音，你就能更加容易地把它说出来。

想征服英语的话 - SpeakingMax英语口语达人

Well in C and other languages that we'll see this semester, you use what's called the for loop, and this as syntax isn't quite as straightforward but once you know what to look for, it's very easy to understand.

在C语言和一些我们这学期将要接触的编程语言中，你将会用到所谓的for循环，也许作为一种语法规则，它看起来不是那么的通俗易懂,但是你一旦知道曲中奥妙，就不难理解了。

哈佛公开课 - 计算机科学课程节选

Like many economic theories, Mr Simon's seems obvious once you know it.

ECONOMIST: Herbert Simon

Once you know it, though, you cannot forget it.

NEWYORKER: The Book of Bach

Once you know what it would cost to rebuild, see if your coverage is close to that figure.

FORBES: 4 Costly Homeowner's Insurance Mistakes to Avoid