| 1. | Please let me know when you 're ready to go .
你走的时候请关照一声。 |
| 2. | We must not pretend to know when we do not know .
不要强不知为知。 |
| 3. | I know when i'm best out of the way .
我知道我最好不干预这件事。 |
| 4. | I 'll let you know when i 'm through with it .
我给你个回信儿。 |
| 5. | Fools never know when they are well off .
人若愚痴，有福不知。 |
| 6. | There is no knowing when he will come .
无法知道他什么时候来。 |
| 7. | Let me know when you're through with the bathroom .
你用完了浴室告诉我好了。 |
| 8. | Do n't pretend to know when you do n't .
不要不懂装懂。 |
| 9. | We do not know when men first began to use salt .
我们并不清楚人类初次用盐的时期。 |
| 10. | It is not known when the first volume was compiled .
编录第一卷的时间现在尚不知晓。 |
