the common man; a common sailor; the common cold; a common nuisance; followed common procedure; it is common knowledge that she lives alone; the common housefly; a common brand of soap.

• 普通人；普通的海员；平常的感冒；平常的麻烦；依照平常的手续；大家都知道她一个人生活；一般的家蝇；牌子一般的肥皂。