句子分析：You can figure it out more effectively when you know what problem it.what 引导的是一个从句吧?但是好像没看到problem it这种说法.怀疑这块儿有问题.如果不对只请在此句上做修改.

句子分析：You can figure it out more effectively when you know what problem it.
what 引导的是一个从句吧?但是好像没看到problem it这种说法.怀疑这块儿有问题.如果不对只请在此句上做修改.

you know 后面跟的肯定是宾语从句
应该是 you know what problem is
少了个is