headlong

adv. /ˈhedˌlɔːŋ/ A2

头朝前地；仓促地

With the head first, or without thinking carefully.

仙境例句

The White Rabbit fell headlong into the leaves, his head going in before his feet.

白兔一头栽进落叶堆里，脑袋比脚先钻了进去。