In vain
As a Chinese idiom, Pinyin is x ū zh ō UPI ā ow ǎ, which refers to something without practical value. It's from Huainanzi · quanyanxun.
Idiom usage
As subject, object, attribute; of something impractical
Examples
Hunger can't eat, cold can't dress, he seems to be in vain. Tang Xianzu's Peony Pavilion
The origin of Idioms
In the Western Han Dynasty, Liu An's "Huainanzi · quanyanxun", it is said that "a square boat helps the river, and there are empty boats coming from one side, touching and covering it. Although there is a heart, there will be no resentment."
In vain
have one 's heart in the right place - hǎo xīn hǎo yì
Failure is the mother of success - shī bài wéi chéng gōng zhī m
see the scene which is dreadful to one 's mind - chù mù jīng xīn
babble out one's first speech sounds - yá yá xué yǔ
as long as the heaven and earth endure - dì jiǔ tiān cháng
Discard the treasure and pick up the gravel - qì qióng shí lì
with the head of a buck and the eyes of a rat - zhāng tóu shǔ mù