Unduplicated
a. 无复制品的,无副本的无法匹敌的, 无法模拟的
🗣️ 情景例句
These days the police are just too soft on drug peddlers.
现在警察对于毒贩过于手软。
Opportunity seldom knocks twice.
机不可失，失不再来。
Our policy is not to grant exclusivity.
我们的方针是不授与专卖权。