aggravate (v. 使...恶化,使...更严重) badly (ad. 严重地,恶劣地,极度地) grave (a. 严肃的,庄重的,严重的 gravity (n. 地心引力,重力,严重,庄重,严肃) serious (a.严肃的,庄重的,严重的,危急的,认真的) seriously (ad. 认真地,严肃地,严重地) severe (a. 剧烈的,严重的,严峻的,严厉的,严格的) severely (ad. 严重地(艰难地,紧凑地,纯朴地)) severity (n. 严格,严重,激烈) vicious (a. 恶毒的,恶意的,凶残的,剧烈的,严重的)