2VERB 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. 反抗;不服;反对
She reacted against the mindlessness and luxury of their lives. [Vagainst n]
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. [VERB + against]
我父亲从来不存钱,我可能正好相反。
SYN rebel against, oppose, revolt against, rise up against
3VERB 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. 产生不良反应;过敏 [Also VERB]
Someone allergic to milk is likely to react to cheese. [VERB + to]
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. [VERBto noun]
4V-RECIP 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. 起(化学)变化;发生(化学)反应
Calcium reacts with water. [VERB + with]
钙和水会发生化学反应
Under normal circumstances, these two gases react readily to produce carbon dioxide and water. [VERB]