horse-chestnut

例句：

1. 1. The horse chestnut tree is a popular ornamental plant in autumn.
   胡桃树是秋季流行的观赏植物。
2. 2. They used to eat horse chestnuts as a treat during the holidays.
   他们在节日期间曾经以胡桃作为零食。
3. 3. The local people use horse chestnuts for making their traditional bread.
   当地人用胡桃制作传统的面包。