Orthodentin
[醫] 直型牙本質, 正牙質
??? 情景例句
Good for you.
我真為你高興。
No matter what she says, don't show you are afraid.
不論她說什么，你也不要讓人知道你害怕了。
I'll keep the things on this shelf for you, said the shopkeeper.
“我先把你的東西放在這個貨架上，”售貨員說。