They work together for the common good.
他們為了共同的利益一起努力。
the common good: the advantage of everyone 共同的利益
【核心詞彙】common
If something is common, it is found in large numbers or it happens often.
常用的
If something is commonto two or more people or groups, it is done, possessed, or used by them all.
共同的; 共有的; 共用的
Commonis used to indicate that someone or something is of the ordinary kind and not special in any way.
普通的
You can use commonto describe knowledge, an opinion, or a feeling that is shared by people in general.
普遍的 (知識、觀點、情感等)
【詞組搭配】
1. common knowledge: something everyone knows 眾所周知的事，常識
2. the common good: the advantage of everyone 共同的利益
3. common practice: a usual or accepted way of doing things 慣例
4. common salt食鹽
5. make / find common cause (with/against sb): to join with other people or groups in order to achieve something formal 〔為達到某種目的〕聯合（某人/對付某人）【正式】
6. common touch: the ability of someone in a position of power or authority to talk to and understand ordinary people - used to show approval平易近人的品質〔含褒義〕
7. common courtesy / decency / politeness: a polite way of behaving that you expect from people 通常的禮貌[禮節]
8. common ground: facts, features, or beliefs that are shared by people or things that are very different 〔有分歧的人或不同事物的實際情況、特徵或信仰等的〕共同基礎，共同的立場
9. in common共同的；共有的
10. common people大眾，平民
11. common ground（爭論雙方的）共同基礎；一致之處
12. common feature共同特徵
【例句拓展】
1. Heart disease is one of the commonest causes of death.
心臟病是最常見的死因之一。
2. Bad dreams are fairly common among children.
小孩做噩夢是很常見的。
3. Democracy might elevate the common man to a position of political superiority.
民主可能會讓普通人升至政治上優越的位置。
4. It is common knowledge that swimming is one of the best forms of exercise.
遊泳是最好的運動之一是普遍常識。
5. He had very little in common with his sister.
他和他姐姐幾乎沒有相同之處。