欧盟主席一职由其成员国轮流担任。

The EU presidency rotates among the members.

《牛津词典》

这个行业由其自律机构监督。

The profession is policed by its own regulatory body.

《牛津词典》

整个巴西民族由其对足球的热爱团结在一起。

The entire Brazilian people are united by their love of football.

《柯林斯英汉双解大词典》

So any kind of ideas, I think any community is defined by its religiosity; they're still made up by normal individuals and human beings.

我想，任何的想法,任何的社会都是由其宗教信仰所定义的,它们仍然是由个人所组成的。

普林斯顿公开课 - 人性课程节选

There are hereditary principalities, like those currently run by Lorenzo, which acquire their authority through tradition and hereditary bloodlines.

第一种是世袭君权，像是由罗伦佐所掌管的候国，其威信的获得,来自传统与世袭血源。

耶鲁公开课 - 政治哲学导论课程节选

Sometimes subtle changes in the structure of a protein can convert it from an active state into an inactive state.

有时蛋白质结构上一些很小的变化,就能将其由激活态转变为非激活态

耶鲁公开课 - 生物医学工程探索课程节选