Cariogenicity
生龋性
🗣️ 情景例句
Don't bother me.
别惹我。
We were pleased to hear from your letter of 6 August that you were impressed with our selection of toys.
我们很高兴收到你方8月6日来函得知你方对我们的玩具非常感兴趣。
When he denied the train's existence,
他说根本没有这趟车。