Anticalculous
[醫] 抗石的, 防牙垢的
??? 情景例句
And then, two years ago, my wife died.
接著， 兩年前我妻子去世了。
Yes, I've just come back from Scotland.
是的，我剛從蘇格蘭回來。
In seeking independence, they do not sacrifice their human dignity.
在追求獨立自由的同時，他們并不犧牲為人的尊嚴。