can2 kait識善verbto understand [something] well

識善彼乎?

can2 kait zap2 yn2?

Is that clear? / 清楚了吗?

国之全人識善此。

sip1 a be1 cuk2 can2 kait ka1.

All the people in the country are well aware of that. / 全国人民都很清楚这一点。