Saproplankton
[生]污水浮游生物
🗣️ 情景例句
Well, I'm glad you're feeling better
我很高兴各位感觉好些。
In college I majored in economics, What was you major?
大学时我主修经济，你主修什么呢？
We are thinking of expanding into the Chinese market.
我们想把生意扩大到中国市场。