reaction

1. N-VAR Your reaction to something that has happened or something that you have experienced is what you feel, say, or do because of it. 反应

Reaction to the visit is mixed. 对这次访问的反应不一。

2. N-COUNT A reaction against something is a way of behaving or doing something that is deliberately different from what has been done before. 反抗

All new fashion starts out as a reaction against existing convention. 所有新时尚都是从反抗现存习俗开始的。

3. N-SING If there is a reaction against something, it becomes unpopular. 抵触[also no det, N 'against' n]

Premature moves in this respect might well provoke a reaction against the reform. 在这方面过早的行动可能会激起对改革的抵触。

4. N-PLURAL Your reactions are your ability to move quickly in response to something, for example when you are in danger. 反应能力; 应变能力

The sport requires very fast reactions. 这项运动要求很快的反应能力。

5. N-UNCOUNT Reaction is the belief that the political or social system of your country should not change. 保守思想[表不满]

Thus, he aided reaction and thwarted progress. 所以他支持保守思想，反对进步。

6. N-COUNT A chemical reaction is a process in which two substances combine together chemically to form another substance. (化学) 反应

Ozone is produced by the reaction between oxygen and ultraviolet light. 臭氧是氧气与紫外线发生化学反应而产生的。

7. N-COUNT If you have a reaction to a substance such as a drug, or to something you have touched, you are affected unpleasantly or made ill by it. (对药物或所碰触的东西等的) 不良反应

Every year, 5,000 people have life-threatening reactions to anaesthetics. 每年，有5000人会对麻醉剂产生致命的不良反应。