knows是什么意思

　　She knows how to make life miserable for her employees.

　　她知道如何整治她的雇员。

　　She knows the local area very well.

　　她非常了解这地区的.情况。

　　She knows all the right people.

　　她认识所有那些关键人物。

　　I can't help thinking he knows more than he has told us.

　　我总觉得他没把他知道的事全告诉我们。