Yan Yuehu
Yan Yuehu is a Chinese idiom. Its pinyin is y à NYU è h ú y à ng, which means fast and powerful. From Soushenji.
Idiom usage
Used as an attributive or adverbial; used in writing
The origin of Idioms
Volume 11 of Soushenji written by Gan Bao of Jin Dynasty: "holding the head of a turtle in the left hand, holding the left cudgel in the right hand, the swallows come out enthusiastically. Look up at the sky and shout, "the water is three hundred steps upstream."
Chinese PinYin : yàn yuè hú yǒng
Yan Yuehu
keep an important secret in. tiān jī bù kě xiè lù