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
He's not interested in settling down.
他不想稳定下来。
What did you do the week before last?
上上星期你干了什么？
What did you have?
你们吃了什么？