the common good

the benefit or interests of all

公益

it is time our elected officials stood up for the common good.

该是我们选出的公务员们维护公益的时候了。

common ground

a point accepted or shared by each of two or more conflicting or differing parties

（冲突矛盾双方或多方承认的）共同立论基础

artists from different cultural backgrounds found common ground.

有着不同文化背景的艺术家们找到了共同基础。

common knowledge

something known by most people

大多数人都知道的事，众所周知之事；常识

common or garden

(Brit. informal)of the usual or ordinary type

(英，非正式)平常的，普通的，平凡的

Britain's common or garden house sparrow.

英国的普通家雀。

common property

a thing or things held jointly

共同财产；公共财产

the common touch

the ability to get on with or appeal to ordinary people

平易近人的能力；与普通人相处（或打动普通人）的能力

have something in common

have a specified amount or degree of shared interests or characteristics

有共同之处（或兴趣、特征）

the two men had little in common.

这两个人没什么共同之处。

in common with

in the same way as

与…一样，与…相同

in common with other officers I had to undertake guard duties.

和其他军官一样，我不得不承担警戒任务。

out of the common

(Brit.)rarely occurring; unusual

(英)不平常的；非同寻常的

in common

Equally with or by all.

一样，同样：与所有的都相同地