Picnometer
n. 比重瓶
🗣️ 情景例句
He cancelled his appointment.
他取消约会了。
Patience is bitter, but its fruit is sweet.
忍耐是苦痛的，但它的果实是甜蜜的。
This made the driver following her brake hard.
她这一停使得跟在后头的司机也来个急刹车。