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
You're right.
你说的对。
The best fish smell when they are three days old.
鱼过三天后，再鲜也变臭。
She gave her luggage to a porter and showed him her ticket.
她把行李交给搬运工并给他看了车票。