1. The factory was fined for discharging waste matter into the river.
该工厂因向河流排放废物而被罚款。

2. Proper disposal of waste matter is essential for environmental protection.
妥善处理废物对环境保护至关重要。

3. The machine separates organic waste matter from other materials.
这台机器将有机废料与其他材料分开。

A: What should we do with this waste matter?
A：我们该如何处理这些废物？

B: We should put it in the recycling bin.
B：我们应该把它放进回收箱里。

1) 垃圾或废弃物

2) 排泄物

3) 无用的物质

1. 废物，垃圾

e.g.
The city is struggling to manage its growing amount of waste matter.
该城市正努力处理日益增长的垃圾量。

noun

1. Material that is no longer useful and is thrown away; refuse or rubbish.

Synonym: waste, refuse, garbage, rubbish