您要查找的是不是：
- There is no knowing what he will think up next . 谁也说不准下一次他又会想出什么花样来。
- There is no knowing what the weather will do. 天气会怎样变化无法预料。
- There is no knowing when we shall meet again . 不知道何时我们再相见。
- There is no knowing when he will be back. 无法知道他什么时候回来。
- There is no knowing what he is doing. 无法知道他在做什么。
- There is no knowing what may happen tomorrow. 谁也不知道明天将发生什么。
- There is no knowing what may happen. 无法知道会发生什么。
- There is no knowing what will happen in the future. 不可能知道将来发生什么事。
- There is no knowing when he would be back. 无法知道他什么时候回来.;又如
- There is no knowing when we shall meet again. 不知何时我们能再相会。
- There is no knowing whether he will come or not. 不知道他会不会来。
- There is no knowing when he will come. 无法知道他什么时候来。
- There is no knowing what may happen to them. 我们无法知道他们将发生什么事。
- There is no knowing where she's gone. 无法知道她到哪去了。
- There is no knowing when we shall finish this task . 不知何时我们能完成这项任务。
- There is no knowing but such an accident may happen. 谁能说不会发生这种意外呢?
- There is no knowing what may happen in one hundred year's time. 一百年后会发生什么事不得而知。
- There is no known antidote for this poison. 这种毒药没有解药。
- Currently there is no known cure for PDD. 到目前为止，仍然没有方法可以治愈PDD。
- There is no known cure but the illness can be treated. 这种病尚没有确切的治愈方法，但可以医治。
