reacts; reacted; reacting
reacts; reacted; reacting
Learner's definition of REACT
[no object]
1
: to behave or change in a particular way when something happens, is said, etc.做出反应;回应 -
When I told her what happened, she reacted with anger.我把所发生之事告诉她时,她非常生气。
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I didn't expect him to react that way.我没料到他竟会做出那样的反应。
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The firefighters reacted quickly when they heard the alarm.消防队员听到警报信号后迅速做出反应。
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often + to — see also overreact 2
of a chemical substance : to change after coming into contact with another substance起化学反应 —
often + with —
often + together 3
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