zhè / zhǒng / yōu / liáng / pǐn / zhǒng / jīng / guò / duō / nián / chuán / dài / xìng / zhuàng / yī / rán / wěn / dìng

这种优良品种经过多年传代，性状依然稳定。

After being passed down through many generations, this excellent variety still has stable traits.