not something to be taken lightly; a matter of great importance or seriousness that is not comparable to children's play

to regard a matter as child's play; to treat something serious with a flippant or irresponsible attitude

A local opera style of Northern and Northeastern China, originally based on folk songs; it is the predecessor of [[评剧|評劇|ping2 ju4]].

To sneak into a theater without a ticket; also refers to a performance that one can watch or listen to for free

A type of traditional Chinese opera performed entirely by women or girls; originally performed at private parties, it later included styles like Peking opera and Bangzi.