Galactometry
[医] 乳[液]比重测定法
🗣️ 情景例句
Sometimes there is,
有时候有，
This is the last time I'll ever ask you to do anything for me.
这是我最后一次要求你为我做事情。
This is a picture of my family at home.
这是我们全家在家里照的一张照片。