[VERB 动词](作出)反应;回应 When you react to something that has happened to you, you behave in a particular way because of it.
[V to n]
[V adv/prep]
[Also V]
They reacted violently to the news...
他们对这条新闻反应强烈。
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。
'How did he react?' — 'Very calmly.'
“他有什么反应?”——“非常平静。”
2
[VERB 动词]反抗;不服;反对 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.
[V against n]
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。
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。
3
[VERB 动词]产生不良反应;过敏 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.
[V to n]
[Also V]
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。
He reacted very badly to the radiation therapy.
他接受放射治疗,副作用很大。
4
[V-RECIP 相互动词]起(化学)变化;发生(化学)反应 When one chemical substance reacts with another, or when two chemical substances react, they combine chemically to form another substance.
[V with n]
[pl-n V]
Calcium reacts with water...
钙和水会发生化学反应
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。
Oxford
react★AWL/riˈækt; NAmEriˈækt/verb1★[intransitive ]react(to sth) (by doing sth) to change or behave in a particular way as a result of or in response to sth 起反应;(对…)作出反应;回应◆Local residents have reacted angrily to the news.当地居民对这一消息表示愤怒。◆I nudged her but she didn't react.我用胳膊肘捅了她一下,可她没有反应。◆You never know how he is going to react.你根本不知道他会作何反应。◆The market reacted by falling a further two points.股市的反应是再下跌两个百分点。2★[intransitive ](+ adv./prep.)to become ill/sick after eating, breathing, etc. a particular substance (对食物等)有不良反应,过敏◆People can react badly to certain food additives.人们对某些食品添加剂可能会严重过敏。3[intransitive ]react(with sth) |react(together) ( chemistry 化) (of substances 物质)to experience a chemical change when coming into contact with another substance 起化学反应;发生化学变化◆Iron reacts with water and air to produce rust.铁和水及空气发生反应产生铁锈。PHRASAL VERBreˌact aˈgainst sb/sthto show dislike or opposition in response to sth, especially by deliberately doing the opposite of what sb wants you to do 反对;反抗◆He reacted strongly against the artistic conventions of his time.他强烈反对当时的艺术俗套。reactreactsreactedreactingreact/riˈækt; NAmEriˈækt/
1behaviour/feelings to behave in a particular way or show a particular emotion because of something that has happened or been said → respondreact to How did Wilson react to your idea? He reacted angrily to the suggestion that he had lied. She reacted very badly (=was very upset) when her parents split up. You have to react quickly to circumstances.react by doing something The government reacted by declaring all strikes illegal. →
overreact
2chemicals technical if a chemical substance reacts, it changes when it is mixed with another chemical substancereact with The calcium reacts with sulphur in the atmosphere.3prices if prices or financial markets react to something that happens, they increase or decrease in value because of itreact to Oil prices reacted sharply (=reacted a lot) to news of the crisis in the Middle East. The market reacted favourably to the announcement.4become ill to become ill when a chemical or drug goes into your body, or when you eat a particular kind of food → respondreact to Quite a lot of children react badly to antibiotics.COLLOCATIONSadverbsreact badly (=become annoyed, upset etc)· Do you react badly to criticism?react angrily/violently· The prime minister reacted angrily to these accusations.react strongly· Scott reacted strongly when he felt he was being treated unjustly.react quickly/swiftly· The goalkeeper had to react quickly.react differently· People react differently to stress.react positively/negatively (=with positive/negative emotions or opinions)· We want versatile people who react positively to change.react cautiously (=carefully, so that you avoid danger or risk)· The United States has reacted cautiously to the offer.react instinctively (=without thinking or needing to think)· She reacted instinctively and reached for her gun.react against phrasal verbto show that you dislike someone else’s ideas or ways of doing something, by deliberately doing the opposite: He reacted strongly against his religious upbringing.
open
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