abruptly adv.突然地,莽撞地unexpectedly adv.未料到地,意外地instantly adv.立即地,即刻地hastily adv.匆忙地,急速地immediately adv.立即,直接地;co...headlong adj.头向前的,匆促而用...all of a sudden 突然,冷不防rapidly adv.迅速地,很快地swiftly adv.迅速地,敏捷地out of the blue adv.出乎意料地