Urinometry
尿比重测量法
🗣️ 情景例句
No, thank you. Please tell him to phone me when he comes back.
不了，谢谢。他回来时，请告诉他给我打个电话。
I will come back with him if he asks me.
我会和他走回来，假如他要求我的话。
you will realize that a modern navy is a good place to study noise.
你就会认识到现代海军是研究噪音的好地方。