Leftere莱夫特雷leftadj.左边的adv.向左n.左边；左派分子；【体】左手拳动词leave的过去式和过去分词形式.left anterior coelom左前体腔left fibrous trigone左纤维三角left handed material左手材料Left-handed medium左手材料left-hand variable左侧变量left-hand marriage贵族子弟娶非贵族女子,门第不相当的结婚left marginal artery左缘动脉left and right brain左右脑left hand side press左臂侧推举Left bronchial mucus左支气管粘液