If something is common, it is found in large numbers or it happens often.
His name was Hansen, a common name in Norway.
他叫汉森,一个在挪威很常见的名字。
Oil pollution is the most common cause of death for seabirds.
石油污染是海鸟死亡的最常见的原因。
Earthquakes are not common in this part of the world.
该区域不常发生地震。
If something is common to two or more people or groups, it is done, possessed, or used by them all.
Moldavians and Romanians share a common language.
摩尔达维亚人和罗马尼亚人使用一种共同的语言。
When there are more animals or plants of a particular species than there are of related species, then the first species is called common.
the common house fly.
常见的家蝇。
Common is used to indicate that someone or something is of the ordinary kind and not special in any way.
Democracy might elevate the common man to a position of political superiority.
民主可能会让普通人升至政治上优越的位置。
Common decency or common courtesy is the decency or courtesy which most people have. You usually talk about this when someone has not shown these characteristics in their behaviour to show your disapproval of them.
It is common decency to give your seat to anyone in greater need.
把座位让给更需要的人是起码的修养。
You can use common to describe knowledge, an opinion, or a feeling that is shared by people in general.
It is common knowledge that swimming is one of the best forms of exercise.
游泳是最好的运动之一是普遍常识。
If you describe someone or their behaviour as common, you mean that they show a lack of taste, education, and good manners.
She might be a little common at times, but she was certainly not boring.
她也许有时会有点儿粗俗,但她绝不令人厌烦。
commons
A common is an area of grassy land, usually in or near a village or small town, where the public is allowed to go.
We are warning women not to go out on to the common alone.
我们在告诫女性不要单独去公共草地。
in common
If two or more things have something in common, they have the same characteristic or feature.
The oboe and the clarinet have certain features in common.
双簧管和单簧管有某些共同特点。
If two or more people have something in common, they share the same interests or experiences.
He had very little in common with his sister.
他和他姐姐几乎没有什么共同语言。