Anticalculous
[医] 抗石的, 防牙垢的
🗣️ 情景例句
She's enthusiastic about the new teaching method.
她对新的教学方法很热心。
This airline has a good safety record.
这家航空公司有很好的飞行安全记录。
At this time of the morning, the arcade was almost empty.
在早晨的这个时候，拱廊街上几乎空无一人。