Hras
[医][=high-rate activated sludge waste treatment]高速活性污泥废水处理
🗣️ 情景例句
Where is your hometown?
你的籍贯是哪里？
Music is his chief hobby.
音乐是他的主要业余爱好。
Over there, near the back.
就在那边，靠后头的地方。