| [/rɪˈækt; rɪˋækt/] v 用法:
1 [I, Ipr] ~ (to sb/sth) behave differently or change as a result of sth; respond 作出反应; 回应:
Pinch me and I will react. 你要掐我我就有反应. *
People can react badly to certain food additives. 有的人对某些食物添加剂产生严重变态反应. *
react positively/negatively to a suggestion 对一项建议作出赞成的[反对的]回应 *
She reacted to the insult by turning her back on him. 她受他侮辱之後就不再理睬他了. 用法:
2 [I, Ipr] ~ (against sb/sth) respond to sb/sth with hostility, resistance, etc 反对; 反抗; 反动:
react strongly against tax increases 强烈反对增税 *
Will the people ever react against this dictator? 有朝一日人民会起来反抗这个独裁者吗? 用法:
3 (chemistry 化) (a) [I, Ipr, Ip] ~ with sth; ~ (together) (of substances) undergo changes by coming into contact with sth （指物质）起化学反应:
Iron reacts with water and air to produce rust. 铁与水和空气起化学反应而生 . *
Sodium and water react (together). 钠和水能起反应.
(b) [Ipr] ~ on sth have an effect on sth or produce a change in sth 对某事物有影响; 使某事物产生变化:
How do acids react on metals? 酸对金属起什麽反应? |