replacement

英 [rplesmnt] 美 [rplesmnt]

n.替换;更换;替代品;替换物;(尤指工作中的)接替者，替代者

复数： replacements

例句：

Their threat to hire replacement workers has the union with its back to the wall.

他们威胁说要雇用替工，这使工会陷入了困境。

Sending a replacement jet would have been uneconomic.

当时派一架喷气式飞机去替换的话，代价太大了。