know a thing or two

例句：

1. 1. I know you'rebusy, but could you please call meback?
   我知道你很忙，但你能回个电话吗？
2. 2. She knows how to fix cars.
   她知道怎么修车。
3. 3. We need to knowmore about the situation before we make adecision.
   在做出决定之前，我们需要了解更多关于情况的信息。