Packed density
[化] 填充密度
🧩 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);
🗣️ 情景例句
Keep quiet about it if you know what's good for you.
什么也别说，免得你自个儿添不自在。
How much will the hospital bill be?
住院费大概是多少钱？
I determined to lodge a complaint as soon as we arrived.
我决定到目的地就给铁路部门提意见。