headlong，
英语单词，主要用作
副词、形容词，作副词时意为“头朝前，头向前地；轻率地；莽撞地，慌慌张张地”，作形容词时意为“轻率的；匆促而用力的；头向前的”。
And to sustain it, these firms will have to plunge headlong into products they know little about, such as mortgages.
An unfortunate mistake that many organizations make is to jump headlong into J2EE withoutreally understanding what it is.
这是为什么，他坚决主张他的第一个
政治改革口号是倡导“加快转变”和“完善地结合”现行体系。而不是一次轻率仓促地改变。