reactionKK [riˋækʃən] /ɹiˈækʃən/发音名词1反应、回应Her first reaction to the news was total disbelief.她听到这个消息的第一反应是完全不敢相信。2反应、过敏反应医学He had a severe reaction to the antibiotics.他对那种抗生素产生了严重的过敏反应。3化学反应化学Heat speeds up the reaction between the two liquids.加热会加快这两种液体之间的化学反应。4反应速度、反射常用复数Drivers with slow reactions should not be on the road.反应速度慢的驾驶人不该上路。5反作用力物理Every action has an equal and opposite reaction.每一个作用力都有大小相等、方向相反的反作用力。6反弹、反扑、抵制The new policy provoked a strong reaction from small businesses.新政策引发了小型企业的强烈反弹。7反动、保守势力政治The revolution was soon followed by years of reaction.革命之后紧接著是多年的反动时期。用这个字练口说→