Packed bed
[化] 填充层
🧩 词语组成解析
packed
[pækt]
adj. 充满…的;塞满了…的;
v. 包装(pack的过去式和过去分词);
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
There has been very little progress this term.
这学期没有什么进步。
An old physician,and a young lawyer.
医生老的好，律师年轻的好。
It looks like the shipping company did this.
应该是货运公司造成的吧。