n.更换；接替者
In addition, we supply small parts for replacement. 此外，我们还提供备用小零件。
The carpets are in need of replacement. 这些地毯需要更换。
My secretary leaves us next week, so we are advertising for a replacement. 我的秘书下星期要走，所以我们现在正登广告招聘一位替代者。
There won't be any difficulty in finding a replacement. 找一个代替者不会有什么困难。
n.补充
