Dentinum
[医] 牙[本]质
🗣️ 情景例句
After forty-eight hours.
四十八小时后。
Experience is a school from which one can never graduate.
经验无止境。
Tom and Mary congratulated us on the birth of our daughter.
汤姆和玛丽为我们女儿的出生向我们表示祝贺。