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 tried to smile.
他设法要微笑。
I played ping-pong this morning.
我今早在打乒乓球。
Even so, people are going to find it difficult to get to work.
即使这样，人们仍会感到上班有困难。