ir-,不，非，replaceable,可替代的。

1. They are priceless, unique and irreplaceable.

它们是独一无二、不可替代的无价之宝。

来自柯林斯例句

2. There's one man who's considered irreplaceable.

有一个人被认为独一无二。

来自柯林斯例句

3. The Radio frequency communication irreplaceable makes mobile communication realized in underground mine.

射频通信无可替代地实现了矿山井下的移动通信.

来自互联网

4. In these major events, the Internet has played an irreplaceable important role.

在这些重大事件中, 互联网发挥了不可替代的重要作用.

来自互联网

5. B: You are very upset with the news . The pet is irreplaceable.

B非常伤心, 因为那宠物是不可替代的.

来自互联网