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
So, what were you two talking about?
你们俩刚才谈什么了？
I'm glad to hear about your promotion.
我很高兴听到你升迁的消息。
He then changed into overalls and spent the next eight hours as a dustman.
然后换上工作服，当8个小时清洁工。