Dmf.
[医] 恒牙龋总数(率)
🗣️ 情景例句
I know the feeling.
我知道这种感觉。
Maybe he'll fall for it this time! Ha, ha.
这一次它可望落入陷阱。哈！哈！
Experiments have proved that children can be instructed in swimming at a very early age.
实验证明，儿童在很小的时候就可以开始学习游泳。