When I was twenty-seven years old, I was a mining-broker's clerk in San Francisco, and an expert in all the details of stock traffic.

我二十七岁的时候，在旧金山的一个矿业经纪公司当职员，精通股票交易的所有细节。

youdao

By the time Alexandra was seven years old, she had begun painting with oil paints.

Alexandra 七岁的时候，就开始用油画颜料画画了。

youdao

Within seven years of excavation, the Dover boat had been conserved and displayed, but it was apparent that there were issues that could not be resolved simply by studying the old wood.

经过长达7年的挖掘，多佛的船得到了保护和展示，但有些问题显然不能只通过研究陈旧的木材来解决。

youdao

At the age of six or seven years old, Emmanuel became a soldier for the Sudan People's Liberation Army.

VOA: special.2009.10.14

Milton has just returned home after seven years at the university, a university education so generously financed by his father who was actually now 70 years old, and John Milton, Jr.

弥尔顿在7年的大学学习结束之后回到家中，他父亲如此慷慨的资助他完成了学业,而此时弥尔顿的父亲已经70岁了。

耶鲁公开课 - 弥尔顿课程节选

They must be at least twenty-five years old, an American citizen for at least seven years and live in the state they represent.

VOA: special.2009.08.14

Did I mention that the video is seven years old?

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He fled the Democratic Republic of the Congo when he was seven years old and grew up in the Kyangwali refugee camp in Uganda.

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One of the kids, probably, oh, six or seven years old at the time, talked to these folks - I don't think this was one of my kids - but he said, say, mom, can I go get that pizza now?

NPR: Millionaire Follows Dad's Footsteps �� Into Space