with spare effort
The Chinese idiom, Pinyin is x í ngy ǒ uy ú L ì, which means that after doing something, there is still energy and time left. From the Analects of Confucius.
The origin of Idioms
In the Analects of Confucius, Xue Er: "if you have spare power, you should learn from literature."
Analysis of Idioms
Used as a predicate or attributive.
with spare effort
The three principles are the same - sān zhǐ xiàng gōng
Huaitangerine as trifoliate orange - huái jú wéi zhǐ