have sth in common
in common 表示共同拥有或共享，常与 have 搭配，可用 much、a lot、nothing 等说明程度。
The two sisters have a lot in common.
姐妹俩有很多共同之处。
民众；公众；平民；共同利益；共享利益；（在他人土地上的）收益权；共用权；共同的利益,由多人共享；城市中供娱乐的开放土地
open land for public use, especially in or near a town or village
共同的利益,由多人共享
Mutual good, shared by more than one.
城市中供娱乐的开放土地
a piece of open land for recreational use in an urban area
共有土地；公地
A tract of land in common ownership; common land.
人民；社区
The people; the community.
在他人土地上获取利益的权利,与土地所有者或其他人共享
The right of taking a profit in the land of another, in common either with the owner or with other persons; so called from the community of interest which arises between the claimant of the right and the owner of the soil, or between the claimants and other commoners entitled to the same right.
The children played soccer on the common after school.
孩子们放学后在公共绿地上踢足球。
用法提示：common 在这里作名词，指公共绿地。
Residents gathered on the common for the summer concert.
居民们聚集在公共用地上参加夏季音乐会。
用法提示：common 作名词，意为公共用地。
The city council voted to preserve the common as a green space.
市议会投票决定保留这块公共绿地。
用法提示：common 作为名词，指城市中的公共绿地。
in common 表示共同拥有或共享，常与 have 搭配，可用 much、a lot、nothing 等说明程度。
The two sisters have a lot in common.
姐妹俩有很多共同之处。
the common 指城镇中供公众休闲的开放绿地，前面常用介词 on。
We walked the dog on the common.
我们在公共绿地上遛狗。
right of common 是法律用语，指在他人土地上放牧或获取收益的共用权。
The villagers had a right of common on the pasture.
村民对这片牧场拥有共用权。
grammar · medium
易错句子My sister and I have a lot in the common.
正确表达My sister and I have a lot in common.
in common 是固定短语，意思是“共有、相同”，其中 common 前不加冠词；汉语说“有共同点”时没有对应的定冠词，学习者容易多补一个 the。去掉 the 后短语才成立。
grammar · medium
易错句子Japanese and Korean have much in common to each other.
正确表达Japanese and Korean have much in common with each other.
表示“与……有共同之处”时用固定搭配 in common with，介词只能是 with，不能用 to；这里受汉语“和……相似”以及形容词搭配 similar to 的影响容易误用 to。换成 with 才符合搭配。
公益；共同利益
We must all work for the common good.
我们都必须为公益而工作。
共用土地；公有地
This area was once common land.
这个地区曾经是公有地。
普通民众；老百姓
The reforms were welcomed by the common people.
这些改革受到普通民众的欢迎。
共同；共有
The two cultures have a lot in common.
这两种文化有许多共同之处。
下议院
The bill was passed by the House of Commons.
该法案在下议院通过了。
现代的公园常被看作昔日公地的延续，都是城市中共享的开放空间。
公地历史上常用于放牧，牧场是与之相关的土地利用方式。
common 可指共同的利益，welfare 表示集体或社会的福祉。
common 作名词时指共同所有的土地，land 是其所属的基本概念。
common 在法律上有‘在他人土地上取益的权利’一义，right 属于同一法律语义场。
共同点；共识
We disagree on many things, but we managed to find common ground on the budget.
我们在很多事上有分歧，但在预算问题上设法达成了共识。
常识；众所周知的事
It's common knowledge that smoking is bad for your health.
吸烟有害健康是众所周知的事。
公共利益；共同利益
The new policy was designed to serve the common good, not private interests.
新政策旨在服务于公共利益，而非私人利益。
公地上的自由会带来所有人的毁灭。出自加勒特·哈丁1968年的文章《公地的悲剧》，常用来比喻共享资源被过度消耗的困境。
Many environmental problems are examples of the tragedy of the commons.
许多环境问题都是“公地悲剧”的例子。
法律会把从公地上偷鹅的男人或女人关起来，却放走偷走公地本身的大恶人。这是英国一首流传很广的警句诗，常被用来讽刺圈地运动侵占公共土地的不公。
The poem about the goose and the common is still quoted in debates about land rights.
这首关于鹅和公地的诗在土地权利的争论中仍会被引用。
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Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.