knowv.了解;知道;认识n.知情
know no measurevi.无止境(极度)
know one's part背熟台词
know each other互相认识
know one's oatsv.打扫(收拾;装修)
know-it-alln.假装博学多闻的人adj.自称无所不知的
know sth. patv.对某事了解得一点不差
know nothingismn.不可知论
know the use of知道 ... 的用途
know more about更加了解
know-how deal诀窍交易