horse chestnut

例句：

1. 1. The horse chestnut tree is a popular ornamental tree in China.
   马栗树是中国流行的观赏树种。
2. 2.They ate the horse chestnuts from the ground and enjoyed them.
   他们从地上吃了栗子并享受了它们。
3. 3. I like to eat horse chestnuts during winter because they are rich in vitamins.
   我喜欢在冬天吃栗子，因为它们富含维生素。