No one can deny the fact that when we are in touble,……这句话是不是有问题?

问题描述:

No one can deny the fact that when we are in touble,……这句话是不是有问题?
我想知道that和when可以连用么?如果不可以,那“无人可否认当困难降临时,什么什么什么……”这句话怎么翻译?

没错.
No one can deny the fact that when we are in trouble,we usually don't know what to do.