What does it mean to be serious?

Explanation: It originally refers to the classics that conform to moral norms. Later used to describe a solemn attitude. Sometimes it's ironic.

From: Jin Bao Pu Zi Hundred Schools: "Zheng Zheng is a deep moral sea, and Zishu is a deepening stream."

Interpretation: Classics are an ocean of morality, while sub-books are a deepening river.

Grammar: formal; As predicate, attribute and adverbial; Describe people's attitude towards things.

Extended data:

Synonyms include integrity, modesty, unsmiling, seriousness, integrity, seriousness and hands-on.

The antonyms are bobbing, smirking, neither fish nor fowl, fooling around, glib, glib, no three, no four, smirking, flirting, fooling around, neither donkey nor horse, putting on airs.

1, don't laugh

Explanation: If: If, whatever. No kidding. Describe a serious attitude.

Said by: On the Book of Rites Quli: "Don't climb high, don't go deep, don't find fault, don't laugh."

Interpretation: Don't climb high, don't go deep, don't slander others casually, don't laugh at them casually.

Grammar: formal; As predicate and attribute; Describe a solemn expression.

2, hippie smile

Explanation: Describe the appearance of smiling without being serious.

From: Cao Qingxue Qin's Dream of Red Mansions, the thirtieth time: "Who have you played with?" You should ask the girls who used to laugh with you! "

Grammar: combination; As subject, predicate and adverbial; With a derogatory connotation.