If you know where to find a good plastic-free shampoo, can you tell Jeanne Haegele?

如果你知道在哪里可以找到好的无塑料洗发水，你能告诉珍妮·海格勒吗？

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Doing some housework together with her is another good way for you two to know each other better.

和她一起做家务是另一种更好地了解彼此的好方法。

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If you don't know your cholesterol level, it's a good idea to have it checked.

如果你不知道自己的胆固醇水平，最好去查一下。

《柯林斯英汉双解大词典》

In a poker game you do not want to let your opponents know if your cards are good or bad.

VOA: special.2009.11.22

So if you have a great idea, you know, talk to a good patent attorney and get it locked away.

所以当你有个好点子的时候，你们知道的，找个专利代理人,然后把它好好藏起来吧。

麻省理工公开课 - 计算机科学及编程导论课程节选

but I think it's, you know, a good practice, especially to be learned here in the United States, too.

但是我觉得这样，是很好的练习，特别是在美国做生意也有学问。

学习外语的重要性 - SpeakingMax英语口语达人

It doesn't give you a divine right to win but it is good to know you are putting the work in.

BBC: SPORT | Other Sport... | Snooker | Hendry shows class to reach final

Ain't it good to know you've got a friend?

NPR: Rocky Mountain Activist Carole King

If you're a frequent flier who has been wronged by incompetent airlines, you may find it a good investment to let you know if your bag is in Frankfurt when it's supposed to be in Rome.

CNN: 5 fun and odd gadgets from CES