Meaning of bù míng:
bù míng
不明
Adjective
not clear; unknown; to fail to understand
Tā de yìtú réngrán bùmíng.
他的意图仍然不明。
His intentions are still not clear.
Zhège shìjiàn de yuányīn réngrán cúnzài yīxiē bùmíng zhī chù.
这个事件的原因仍然存在一些不明之处。
There are still some unknown aspects to the cause of this incident.
Tā wèishéme zhème zuò, wǒ shízài bù míngbái.
他为什么这么做,我实在不明白。
I really don't understand why he would do that.