Npdes
[医][=National Pollution Discharge Elimination System]全国污染排（放清）除系统
🗣️ 情景例句
And how are you going to stop him?
那， 怎么去阻止他呢？
I ran all the way to school, otherwise I'd have been late.
我一路跑到学校，不然就迟到了。
What's that? asked Lucy. She pointed at a strange thing with three legs and a strange top. It was made of metal.
“那是什么？”露西说。露西指着一个有三条腿和一个奇怪的顶部的怪怪的东西问。是用金属造的。