Tests at the age of seven provide a benchmark against which the child's progress at school can be measured.

七岁时进行的测试为孩子在学校中的学习发展提供了一个测量基准。

《牛津词典》

At the age of seven, he started by pulling his red wagon around his neighborhood collecting bottled water and supplies.

在7岁的时候，他就开始在他家周围拉着他的红色的手推车，收集瓶装水和供给物。

youdao

Children entered primary school at the age of seven.

孩子在七岁上小学。

youdao

Edward Kennedy died on August twenty-fifth, two thousand nine, at the age of seventy-seven.

VOA: special.2009.09.13

It wasn't until 1645 at the age of thirty-six or thirty-seven that Milton would publish his first volume of poems, which he titled simply Poems.

直到1645年他36或37时,弥尔顿才出版了第一部诗集，就叫《弥尔顿十四行诗集》

耶鲁公开课 - 弥尔顿课程节选

So,at the age of forty-seven she started to glue crushed colored glass in special designs on every surface in her house.

VOA: special.2010.04.14

Daley, who lives in Plymouth with his mother and two brothers, started diving at the age of seven.

WSJ: Menu

Metin Arditi was born in Ankara, Turkey, in 1945 and moved to Switzerland at the age of seven.

UNESCO: Metin Arditi to be named UNESCO Goodwill Ambassador

At the age of seven, Hamlisch became the youngest person to be accepted at New York's prestigious Juilliard school.

BBC: Streisand and Minnelli pay tribute to Marvin Hamlisch