她对他的请求有很快的反应。
tā duì tāde qǐngqiú yǒu hěnkuài de fǎnyìng 。
She has a quick response to his request.
在化学实验中,我们观察到了反应。
zài huàxué shíyàn zhōng , wǒmen guānchá dàole fǎnyìng 。
In the chemistry experiment, we observed the reaction.
他的反应让我很惊讶。
tāde fǎnyìng ràng wǒ hěn jīngyà 。
His reaction surprised me.