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
You need to pay more attention to it.
你需要更加留心。
Is the source of the information reliable?
那个消息的来源可靠吗？
Spiders are busy for at least half the year in killing insects.
蜘蛛至少有半年在忙于吃昆虫。