overreact (verb): To react with more emotion than is necessary or appropriate. The flashcard also provides examples of its usage and the related noun, 'overreaction'.
[VERB 动词]反应过火；反应过激 If you say that someone overreacts to something, you mean that they have and show more of an emotion than is necessary or appropriate.
[V]
[V to n]
Is the council right to be concerned, or is it overreacting?...
市政委员会表示关切是合情合理呢，还是反应过激？
The market appeared to overreact, but this is not the case...
市场反应看似过激，但实际并非如此。
I overreact to anything sad.
我一碰上悲伤的事物就难以控制情绪。
overreaction
This is actually an outrageous overreaction.
这事实上是令人无法容忍的过激反应。
Oxford
over·react/ˌəʊvəriˈækt; NAmEˌoʊvəriˈækt/verb[intransitive ]overreact(to sth) to react too strongly, especially to sth unpleasant 反应过激，反应过火（尤指对不愉快的事情）▶over·reac·tionoverreactionoverreactions/ˌəʊvəriˈækʃn; NAmEˌoʊvəriˈækʃn/noun[singular , uncountable ]overreactoverreactsoverreactedoverreactingover·react/ˌəʊvəriˈækt; NAmEˌoʊvəriˈækt/over·reac·tion/ˌəʊvəriˈækʃn; NAmEˌoʊvəriˈækʃn/
to react to something with too much emotion, or by doing something that is unnecessaryoverreact to You always overreact to criticism. Many investors overreacted to the stock market crash.—overreaction /-riˈækʃən/ noun [singular, uncountable]: Their response was an overreaction.