reacts

英 [riˈækts]

美 [riˈækts]

v.  起反应; (对…)作出反应; 回应; (对食物等)有不良反应，过敏; 起化学反应; 发生化学变化
react的第三人称单数

柯林斯词典

• VERB （作出）反应；回应
  When youreact tosomething that has happened to you, you behave in a particular way because of it.
  1. They reacted violently to the news...
     他们对这条新闻反应强烈。
  2. It's natural to react with disbelief if your child is accused of bullying...
     如果你的孩子被指责欺负了别的孩子，你不相信是很正常的。
  3. 'How did he react?' — 'Very calmly.'
     “他有什么反应？”——“非常平静。”
• VERB 反抗;不服;反对
  If youreact againstsomeone's way of behaving, you deliberately behave in a different way because you do not like the way they behave.
  1. She reacted against the mindlessness and luxury of their lives...
     她对他们生活的盲目和奢侈很反对。
  2. My father never saved and perhaps I reacted against that.
     我父亲从来不存钱，我可能正好相反。
• VERB 产生不良反应;过敏
  If youreact toa substance such as a drug, ortosomething you have touched, you are affected unpleasantly or made ill by it.
  1. Someone allergic to milk is likely to react to cheese...
     对牛奶过敏的人可能对奶酪也有不良反应。
  2. He reacted very badly to the radiation therapy.
     他接受放射治疗，副作用很大。
• V-RECIP 起（化学）变化;发生（化学）反应
  When one chemical substancereacts withanother, or when two chemical substancesreact, they combine chemically to form another substance.
  1. Calcium reacts with water...
     钙和水会发生化学反应
  2. Under normal circumstances, these two gases react readily to produce carbon dioxide and water.
     在正常情况下，这两种气体容易发生反应产生二氧化碳和水。

双语例句

• A nutrient or chemical that reacts with and neutralizes oxidants, free radicals or chemicals that release free radicals.
  一种能够与氧化剂、由基或释放自由基的化学物质发生反应使其中性的营养物或者化学物质。
• Easy to absorb moisture and reacts with water into aluminium hydroxide and isopropanol.
  易吸湿，遇水分解成氢氧化铝和异丙醇。
• Reacts with some active metal powder and generates hydrogen.
  能与一些活性金属粉末发生反应，放出氢气。
• Allergic reactions can occur when the immune system over reacts to innocuous substances.
  过敏反应可能发生当免疫系统起反应对无害物质。
• Particulate matter in soils and aquatic systems reacts with and influences the biological activity of pesticides.
  土壤和水系统中的颗粒物质都与农药的生物活动起反应，并影响后者。
• Adding the video system creates an active surveillance system that reacts to an alarm situation.
  增加视频系统而创造的主动监视系统，能对警报情况做出反应。
• Carbon dioxide in the air reacts with the rainwater, forming a weak acid ( carbonic acid) that may chemically attack the rocks.
  二氧化碳在空气中与雨水相互作用形成了可以对岩石进行化学腐蚀的弱酸（碳酸）。
• If she reacts poorly, then it reflects badly on her, and not on you.
  如果她的反应很差，就反映出了她的窘境，而不是你。
• The acid reacts with the metal.
  酸和金属会发生反应。
• Caustic soda is a base which reacts with hydrochloric acid to give water and sodium chloride.
  苛性钠是一种碱，它与盐酸起反应生成水和氯化钠。