| 1. | I was unaware of his existence until now .
现在我才知道有他这么个人。 |
| 2. | I knew something was going to happen .
我知道有好事情等着我。 |
| 3. | I know nothing to the contrary .
我不知道有和这相反的情况。 |
| 4. | Most people know a sort of puzzle called rebus .
大多数人都知道有一种称为画谜的猜谜。 |
| 5. | He didn't know that there was much ground for complaint .
他可不知道有多少可抱怨的理由。 |
| 6. | Do you know of any way to stop a person snoring ?
你知道有什么方法可以制止一个人打呼噜吗？ |
| 7. | We know of two receptor diseases that are nongenetic .
我们知道有两种不是遗传性的受体疾病。 |
| 8. | You don't know how much of it ends up in a blind alley .
你不知道有多大一部分走进了死胡同。 |
| 9. | Four general circumstances which lead to this effect are known .
目前已经知道有四种寻常情况会产生这种效果。 |
| 10. | How many friendships have you known formed upon principles of virtue ?
你知道有多少友谊是按道德原则形成的？ |
