但是你永远也不会知道顾客们要什么。

But, you never know.

youdao

你也知道墨水你将需要什么特别。

You will also know in particular what inks you will need.

youdao

你知道你想要什么，你也知道如何达到目的。

You know what you want, and you know how to get it.

youdao

你知道你想要什么，你也知道如何达到目的。

You know what you want, and you know how to get it.

youdao