be ignorant of the events of one’s age; lack of worldly wisdom; not know what is going on in the world ? 天天又說(shuō)我～，這個(gè)也不知，那個(gè)也不學(xué)……(《紅樓夢(mèng)》593) You keep complaining every day of my lack of worldly wisdom,my ignorance and failure to learn.