Pyknometer
[医] 比重瓶
🏥 医学释义
①比重瓶 ②比重计
🗣️ 情景例句
Dogs make great pets, but don't leave them alone with small children.
狗是最好的宠物，但不要让狗和小孩子单独在一起。
The shoes are worn-out.
这鞋已经不能穿了。
'Good heavens!' exclaimed his wife.
“天啊！”他的夫人惊叫，