Pycnometry
[物]测比重术
🗣️ 情景例句
He is a college drop-out.
他从大学辍学半途而废。
I'm not kidding.
我不是开玩笑。
When he landed near Dover, the first person to greet him was a local policeman.
当他在多佛着陆后，第一个迎接他的是当地一名警察。