Gravitometer
重差计(测定比重用)
🏥 医学释义
比重计，比重测定器
🗣️ 情景例句
He was my roommate in college.
他是我大学时的室友。
I've always respected him.
我一直很尊敬他。
The porter, however, could not understand me.
然而搬运工却不明白我的话。