头向前地;不顾前后地
Headfirst \Head`first"\, Headforemost \Head`fore"most`\, adv. With the head foremost.
headfirst adj : with the head foremost; "a headfirst plunge down the stairs"; "a headlong dive into the pool" [syn: {headlong}] adv : with the head foremost; "the runner slid headlong into third base" [syn: {headlong}]