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
It's a pleasure to meet you too, Mrs. Green. I've heard so much about you.
格林太太，我也很高兴见到您。早就听说过您。
Why are you always late? You're fired!
你怎么老是迟到？你被解雇了！
This is a photograph of our village.
这是我们村庄的一张照片。