相关单词近義詞 severe 嚴厲的, dangerous 危險的, serious 嚴肅的, grave 墳墓, lethal 致命的, incurable 不能毉治的, deadly 致命的, critical 批評的, fatal 致命的, acute 嚴重的, mortal 致命的, grievous 痛苦的臨近詞life, Lifeampil相似詞life-saver, life-saving, life-size, life-support system, lifebelt, lifeblood, lifeboat, lifeguard, 返回 life-threatening