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
We usually accept payment by irrevocable L C payable against shiping documents.
我们一般用不可撤销信用证，凭装运单据结汇付款方式。
While the dog gnaws bone,companions would be none.
狗啃骨头无同伴。
Don't try to get up. You shouldn't get up if you're badly hurt.
别起来。受了重伤，你不该起来的。