Preventology
[医] 牙病预防学
🗣️ 情景例句
I know. I know. I'm really sorry.
我知道 我知道。真的很抱歉。
Their grandchildren are grown up now.
他们的孙子现在长大了。
that the annual drug bill of the Health Services is mounting to astronomical figures
卫生部门的年度药费上升到了天文数字，