Retroaction
n. 反動(dòng), 反作用, 溯及既往\\n[醫(yī)] 反作用, 逆作用
? 同義詞
?? 醫(yī)學(xué)釋義
反作用，反饋
??? 情景例句
It's not as bad as all that.
事情沒(méi)有那么糟。
Buy one get one free.
買(mǎi)一送一。
Never mind. So now you know what you should do.
不要緊。好了，現(xiàn)在你知道該怎么做了吧。