垃圾分类的实施有助于有害物质的彻底消除。

The implementation of waste sorting helps in the complete ___elimination of harmful substances.

他在比赛的第一轮就被淘汰了。

He was out of the competition after the first round of ___eliminations.

多吃蔬菜有助于废物的排出。

Eating more vegetables helps with the ___elimination of waste.