Youai Duojiao means that a beautiful young woman is very delicate. The meaning of Yuanzhi Xianglan originally refers to the fragrant grass growing on both sides of Yuanxiang. It was later used to describe noble people or things. Same as "Yuanzhililan".
These two words are now mostly used in girls’ names, implying good wishes for children.
There are many such beautiful eight-character short sentences, for example - Youyuan: Youai Duojiao, Yuan Zhi Xianglan. Jane's heart: a simple heart covered with sand and gold, a pure heart. Wan Ning: Gentle and gentle, living and working in peace and contentment. Anhe: Peace and happiness without worries, the wind and crops are gone. Li Ke: Apricot rain and pear clouds, Ming Ke Qiang Yu. _Yue: The East is not_, the flowers are pleasing to the eye. Rui Qi: The Rui Qi grass is soft and the Qi Qiao is exquisite.