Defluorination
[化] 脫氟作用
??? 情景例句
Smoking is addictive, and causes cancer, But the point I most want to emphasize is that it damages the health of those around you.
吸煙會上癮，會引發(fā)癌癥。但我最想說的是，吸煙同時也有損你的健康。
The roof has leaks in it,and the front step need to be fixed.
房頂有漏縫，并且前面臺階需要修理。
Nor is it only the ignorant and ill-educated person who has such faith in the bottle of medicine.
并不只是那些無知和沒受過良好教育的人才迷信藥瓶子。