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新东方-柯林斯雅思备考词典
react
[VERB]
reacts , reacting , reacted
1. [I 不及物动词] 作出反应
When you react to something that has happened to you, you behave in a particular way because of it.
近义词
双语例句
例：They reacted violently to the news.
他们对这条新闻反应强烈。
例：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人，你不相信是正常的。
2. [I 不及物动词] 反抗
If you react against someone's way of behaving, you deliberately behave in a different way because you do not like the way they behave.
近义词
双语例句
例：My father never saved money and perhaps I reacted against that.
我父亲从不攒钱，也许我正好相反。
3. [I 不及物动词] （对药物或其他所碰触的东西等）起不良反应
If you react to a substance such as a drug, or to something you have touched, you are affected unpleasantly or made ill by it.
双语例句
例：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。
4. [RECIP 相互动词] 起化学反应
When one chemical substance reacts with another, or when two chemical substances react, they combine chemically to form another substance.
双语例句
例：Calcium reacts with water but less violently than sodium and potassium do.
钙能与水产生化学反应，但不如钠和钾之间的反应那么剧烈。
例：Under normal circumstances, these two gases react readily to produce carbon dioxide and water.
在正常情况下，这两种气体迅速发生化学反应，制造出二氧化碳和水。