Catalyst bed
[建] 催化剂床
🧩 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
He's gone for the day.
他整天都不在。
Gee, that's bitter.
噢，好苦！
That'll be very intersting. What cities are you going to visit?
那一定很有趣。你们打算参观哪些城市？