Packing fractians
[医] 敛集率
🧩 词语组成解析
packing
['pækiŋ]
n. 包装，打包;包装材料;（缝隙）填料;
v. 压紧(pack的ing形式);装满;
🗣️ 情景例句
She was in love with Donald McGrath,
她爱上了Donald McGrath，
I'm a graduate of Yale University., I have a Bachelor of Arts degree.
我是耶鲁大学的毕业生，我有文学学士学位。
This, however, means nothing.
但是，这没有什么关系，