例句：
1、若是普通顏料就要涂兩層。
If it were any ordinary paint you would need two coats.
2、蕁麻是一種普通的野生植物。
Nettle is a kind of common wild plant.
3、普通的一天，普通的他們，說著普通的話。
The ordinary ones are saying ordinary words in an ordinary day.
4、他們能從普通物質中提取貴重藥物。
They can abstract precious medicines from ordinary substances.
5、 但是現在不是普通時期。
But these are not ordinary times.