He reached puberty at the age of fourteen.

他14 时进入了青春期。

She entered a convent at the age of 16.

她十六时进了修道院。

He ceased to write at the age of sixty.

他60停止了写。

At the age of nineteen he began his duty.

他19时开始服兵役。

She entered the political arena at the age of 25.

她25进入政界。

He was addicted to heroin at the age of 17.

他17的时候对海洛因上了瘾。

At the age of fourteen John really began to sprout up.

约翰在14时真正开始发育。

She was struck down by polio at the age of four.

她那年因小儿麻痺症死去。

At the age of six he was already composeing at the piano.

他六时即用钢琴曲。

Cycling around France at the age of 75 is no mean feat.

以75高龄骑自行车环法真是一个壮。

What a precocious child—reading Jane Austen at the age of ten!

10读简·奧斯汀的品，真是早慧！

Joe was badly bitten by the showbiz bug at the age of four.

乔迷上了演艺活动。

At the age of twentytwo he already has several tournament victories to his credit.

他在二十二时已经数次赢得联赛的胜利。

At the age of twenty, he decided to emigrate and seek his fortune in Canada.

他二十时决定移民去加拿大寻找发财之道。

Born in Madrid to parents who were Zarzuela performers, Placido Domingo moved to Mexico at the age of eight.

出生于马德里，父母亲都是西班牙喜歌剧表演者，多明哥在八时搬到墨西哥。

Involving himself in the Liberation War at the age of 16 in literary and art work, later as editor and playwrite.

16投身解放战争，文艺工，后编辑、编剧。

At the age of 40, King Gillette was a frustrated inventor, a bitter anticapitalist, and a salesman of cork-lined bottle caps.

40时，金·吉列不过一失意发明人，激烈的反资本主义者，软木衬瓶盖推销员。

Serum and the levels of urinary LH during the ovulation from five women with eumenorrhea at the age of childbearing were tested by MAIA.

应用MAIA测定5名月经周期正常育龄妇女围排卵期的血清和尿LH。

In 2003, at the age of 85, Joern Utzon was recognised by his peers and awarded the prestigious Pritzker Prizer Prize, regarded as the Nobel Prize of architecture.

到了2003年，杰恩仁重85时得到了同行的认可，获得了著名的普利兹克奖。这个奖被认为是建筑界的诺贝尔奖。

The content of IgG,IgM,IgA,C3,C4 and formative ratio of ERFC and total rosette were tested on Game chicken which were fed in Xishuangbanna at the age of 60th day and 547th day.

检测了60日龄和547日龄云南西双版纳斗鸡的IgG,IgM,IgA,C3,C4,E玫瑰花环、E总花环等常规血液生化指标。