Bacteria bed
生物滤池
🧩 词语组成解析
bed
[bɛd]
n. 床;苗圃;河床;（地下由黏土、岩石等构成的）地层;
vt. 把…固定在;（某人）发生性关系;给人铺床;
vi. 上床;分层;
🗣️ 情景例句
His experience will be valuable to both of us.
他的经验对你我都很有用。
There is something in what she said.
她说的话里有些重要的东西。
And because I was deaf, I could not learn to speak.
因为我耳聋，我不能学说话。