Spare no effort
It's a Chinese idiom to spare no detail. Pinyin is B ù y í J ù x ì, which means not to let go even the smallest.
source
Liao Zhongkai's reply to Hu Shi's minefield book: "it can be seen that Mr. Liu's attitude towards a problem is not indulgent, and his spirit is meticulous. I really admire it. "
Discrimination of words
Pinyin code: byjx
usage
As a predicate or attributive; without omission
Spare no effort
obtain gold by washing it from sand and gravel - pái shā jiàn jīn
remain mute as if one 's mouth were sealed - sān jiān qí kǒu
Mountains and rivers are easy to change, but nature is hard to change - shān hé yì gǎi,běn xìng nán yí