相关单词近义词 boat 船临近词lifeless, life, lifeboats, lifeboatman, lifeboat ethic, lifeboat stern, lifeboat drill, lifeboat cutter, lifeboat engine, lifeboat painter, lifeboat marking, lifeboat accident相似词life-support system, life-threatening, lifebelt, lifeblood, lifeguard, lifeless, lifelike, lifeline, 返回 lifeboat