Mlss
[医][=mixed liquor suspended solid]（有机物和活性污泥）混合液中的悬浮固体
🗣️ 情景例句
We have around 3,000 workers.
大约有3000名职工。
Better an egg today than a hen tomorrow.
前程虽远大，现实尤可贵。
I have two cats. One is white, the other is black.
我有两只猫，一只是白猫，另一只是黑猫。