Picnometer
n. 比重瓶
🗣️ 情景例句
Nice to meet you, Mr. Johnson.
很高兴见到你 Johnson先生。
She's perfectly reasonable in her demands.
她的要求完全合情合理。
Among tribal people all knowledge inherited by tradition is shared by all;
在部落中，通过传统继承的知识为所有人共享，