headlong

a. 头向前的,匆促而用力的,轻率的
ad. 头向前地,猛然的用力的

Don't rush headlong into danger; think it through carefully before you make any decisions.

不要轻率地奔赴险境，做任何决定之前都要认真想想。

Little Marry carried on for ten minutes after she fell headlong.

小玛丽摔了个倒栽葱后,哭闹了十分钟。