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TOEFL BNC: 2923 COCA: 2666

react

1 ENTRIES FOUND:
react /riˈækt/ verb
reacts; reacted; reacting
react
/riˈækt/
verb
reacts; reacted; reacting
Learner's definition of REACT
[no object]
: to behave or change in a particular way when something happens, is said, etc.做出反应;回应
often + to
see also overreact
of a chemical substance : to change after coming into contact with another substance起化学反应often + with
often + together
medical : to be affected by a drug, food, etc., in usually a bad way起(不良)反应

react against

[phrasal verb]
react against (someone or something)
: to do things that are opposed to (something or someone that you disagree with)反对;反抗
TOEFL BNC: 2923 COCA: 2666

react

verb

re·​act rē-ˈakt How to pronounce react (audio)
reacted; reacting; reacts

intransitive verb

1
: to exert a reciprocal or counteracting force or influence
often used with on or upon
2
: to change in response to a stimulus
3
: to act in opposition to a force or influence
usually used with against
4
: to move or tend in a reverse direction
5
: to undergo chemical reaction

transitive verb

: to cause to react

Synonyms

Example Sentences

When I told her what happened, she reacted with anger. I didn't expect him to react that way. The firefighters reacted quickly when they heard the alarm. He reacted badly to the drug.
Recent Examples on the Web Because Apple is much more likely to notice and react quickly to problems in its own software and apps than third-party games. Matthew Humphries, PCMAG, 16 Sep. 2022 The other members of the association were hesitant at first, Frie said, and unsure of how the community would react. Madeline Heim, Journal Sentinel, 15 Sep. 2022 Now, columnist Mike Bianchi and Knights beat reporter Jason Beede recap UCF’s loss against Louisville, react to Nebraska firing coach Scott Frost and preview this week’s game at FAU. Charles King, Orlando Sentinel, 13 Sep. 2022 Moreover, the Consumer Price Index data show that inflation is spreading as a wider variety of businesses react to higher wages and brace for their costs to keep rising. Larry Edelman, BostonGlobe.com, 13 Sep. 2022 Regardless of the game's outcome, watching Peyton, Eli and Shannon react to the ending in real-time showed the genius of the ManningCast format. Matthew Vantryon, USA TODAY, 13 Sep. 2022 Two measure the output of each drive unit, two measure and react to external (ambient) noise and two offer enhanced voice rendition and noise suppression. Robert Ross, Robb Report, 9 Sep. 2022 More painting and etching events could follow depending on how residents — and catalytic converter thieves — react to the deterrents, said Waguespack, who bought the etching kits that will be used Sunday. Jake Sheridan, Chicago Tribune, 9 Sep. 2022 Some researchers even hypothesize that empaths have hyper-responsive mirror neurons, which react when another person’s behavior is observed. Arthur C. Brooks, The Atlantic, 8 Sep. 2022 See More

Word History

Etymology

New Latin reactus, past participle of reagere, from Latin re- + agere to act — more at agent

First Known Use

1644, in the meaning defined at intransitive sense 1

Time Traveler
The first known use of react was in 1644
TOEFL BNC: 2923 COCA: 2666
react

verb

ADVERB | VERB + REACT | PREPOSITION ADVERBstrongly反應強烈favourably/favorably, positively, well有利地/積極地/很好地回應people who react positively to change對變化作積極反應的人adversely, badly, negatively, poorly, unfavourably/unfavorably負面反應;不良反應;消極地回應;不利地回應aggressively, angrily, defensively, sharply, violently挑釁地/憤怒地/防禦性地/尖銳地/激烈地回應emotionally情緒性地回應cautiously, coolly謹慎地/沉着地回應calmly, rationally冷靜地/理智地回應appropriately恰當地回應strangely奇怪地回應immediately, instantly立即/即刻回應quickly, rapidly, swiftly迅速反應The police must be able to react swiftly in an emergency.警方在面對緊急情況時必須能迅速作出反應。slowly反應遲緩differently反應不同accordingly相應地回應His insensitive remarks hurt and she reacted accordingly.他冷漠的話語傷害了她,她也冷漠以對。automatically, instinctively, spontaneously自動地/本能地/自然地反應physically生理上反應chemically發生化學反應Silicon reacts chemically like carbon.矽與碳的化學反應相似。VERB + REACTtend to傾向於回應be slow to反應遲緩The industry has been slow to react to these breakthroughs in technology.該行業對技術上的這些突破反應遲緩。not know how to不知道如何回應He did not know how to react to her sudden mood swings.他不知道如何應對她的情緒突變。PREPOSITIONagainst反對Many young people react against traditional values.許多年輕人反對傳統的價值觀。by以⋯回應The government reacted by increasing taxation.政府的反應是增加稅收。to對⋯反應The committee reacted positively to the proposals.委員會對這些提議作出了積極回應。with用⋯回應Her family reacted with horror when she told them.她告訴她的家人後他們驚駭不已。

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