over a long period of time
As a Chinese idiom, Pinyin is Ni á NSH ē NYU è Ji ǔ, which means long time and refers to long time. It's from the second moment of surprise.
The origin of Idioms
Volume 9 of the second moment of surprise: "I know that the gate of the garden is old and hard, and I was kicked open by a group of people outside."
Idiom usage
Used as an attributive or adverbial; used of a long time. Zhang Qi ate two or three bowls of hot wine at a time and pushed the door with his feet. The bolt was open and closed day and night. He was very old and slippery. He was excited and jumped out. In Qing Dynasty, Chu people won the 12th chapter of the romance of Sui and Tang Dynasties
Chinese PinYin : nián shēn yuè jiǔ
over a long period of time
the time when spring breezes bring the news of the flowers. fēng xìn nián huá