| 释义 |
[/rɪˈækʃn; rɪˋækʃən/] n 用法:
1 [C, U] ~ (to sb/sth) response to a situation, an act, an influence, etc （对情况、 行动、 影响等做出的）反应, 回应:
What was his reaction to the news? 他对这消息的反应如何? *
Her arrest produced an immediate/a sudden reaction from the press. 她被捕的事立刻[突然]在新闻界引起反响. *
the shocked reaction of schools to education cuts 学校对削减教育经费的激烈反应 *
Reaction to his taunts will only encourage him. 别理会他恶言寻衅, 一理他更来劲儿. 用法:
2 [sing] physical response, usu a bad one, to a drug, chemical substance, etc （由药物、 化学物质等引起的）生理上的反应（通常指不良反应）:
an allergic reaction to animals, birds, etc 对兽类、 鸟类等的变态反应 *
I had a bad reaction after my typhoid injection. 我注射伤寒针剂後产生了不良反应. 用法:
3 [sing, U] return to a previous state after a period of the opposite condition 回复到原来的状态; 复旧:
After all the excitement there was (an inevitable) reaction, eg a time when life seemed dull again. 热闹一番过後, （不可避免地）又恢复了旧观（生活沉闷如故）. 用法:
4 [U] opposition to (esp political) progress or reform 反对（尤指政治的）进步或改革; 反动:
The forces of reaction made reform difficult. 反动势力给改革造成了困难. 用法:
5 [C, U] chemical change producedby two or more substances acting upon each other 化学反应:
nuclear reaction, ie change within the nucleus of an atom 核反应. |