weakenv.使 ... 弱，削弱； 变弱； 弄淡weakened languages衰变语言weaken the physique使体质变弱weakening conflicts弱化矛盾weakening mechanism弱化机理weakenedplane joint成形干燥后易分离的接口Weakening influences影响减弱weakening conditions弱化条件weakened plane joint半缝,弱面缝weaken the spirit of削弱 ... 的精神／士气weaken sb's authority削弱某人的权力