Retroaction
n. 反动, 反作用, 溯及既往\\n[医] 反作用, 逆作用
✅ 同义词
🏥 医学释义
反作用，反馈
🗣️ 情景例句
Don't cross that bridge till you come to it.
没到河边，先别操心怎么过桥。
The buyer has the right to cancel the contract unilaterally if the seller fails to ship the goods within the L/C validity.
如果卖方不能在信用证有效期内交货的话，买方有权单方面取消合同。
We need seven of these.
我们要七个这种的。