Areopyknometer
[机] 比重瓶比重计
🗣️ 情景例句
You're kidding.
在说笑吧。
If you do have the sincerity to do business with us, please show me your cards and put them on the table.
如果您确有诚意与我们做生意，请摊牌吧。
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你们离开实验室前，务必要关上电源，关好窗户。