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 says I never turn them out when I leave.
他说我离开时从不关灯。
To read without reflection is like eating without digestion.
学而不思，犹如食而不化。
He can hardly speak.
他几乎说不出话来。