Three years of love
Sanyianzhiai, a Chinese idiom, Pinyin is s ā NNI á nzh à I, which means that I have been ill for a long time before I go to look for dried Artemisia argyi leaves to cure this disease. It means that everything should be prepared at ordinary times. It's too late to think of a way when it comes to the end. It's from Mencius · Li Lou Shang.
Idiom usage
Examples
If you want to enter a university, you should start to study hard, not for three years.
The origin of Idioms
Mencius · Li Lou Shang: "today's desire for the king is still seven years' disease, and three years' love."
Three years of love
have food spread out ten feet square -- live in luxury - shí qián fāng zhàng
there is no secret about one 's movements - lái qù fēn míng
insidious slander which gradually soaks into the mind - jìn rùn zhī zèn