大家好，我是小跳，我来为大家解答以上问题。reaction time，reaction很多人还不知道，现在让我们一起来看看吧！
1、2;复古. 将酸和金属放在一起会引起反应. 【化】【物】反应,反作用[C][U] Putting an acid and a metal together causes a reaction。
2、 4,虚脱? 他对这个计划有什么反应. 1,感应[C][U][(+to)] What was his reaction to the plan;against)] His efforts were defeated by the forces of reactionreaction KK. 反动: [] n: [] DJ. (兴奋过度)疲倦。
3、 3;倒退[U][S][(+from/. 他的努力被反动势力挫败. 反应。
本文到此讲解完毕了，希望对大家有帮助。