bend forward and backward
Chinese idiom, Pinyin is Qi á NF ǔ h ò uy ǎ ng, which describes the body shaking back and forth (mostly refers to laughing).
Idiom usage
It's an adverbial to describe laughing. Xiaoming told a joke, which made the whole class laugh.
Analysis of Idioms
The synonym roars with laughter; the antonym laughs in silence
Chinese PinYin : qián fǔ hòu yǎng
bend forward and backward
have not yet found openings to exploit. wú xì kě chéng
superfluous words and redundant sentences. rǒng cí zhuì jù
one 's crime deserves more than death. sǐ yǒu yú lù