v.
1. 不及物动词：[react (to sb/sth)] 作出反应，回应
2. 不及物动词：[react (against sb/sth)]反对，反抗，反动
3.【化】 不及物动词：[react with sth
react (together)] （指物质）起化学反应； 不及物动词：[react on sth ]对某事物有影响，使某事物产生变化 词形变化
- 时态 reacted，reacting，reacts
- act against or in opposition to
- undergo a chemical reaction; react with another substance under certain conditions
- show a response or a reaction to something