By age 16 he was playing professionally with bands in Greenwich Village.
到16岁时，他已在与格林尼治村的各乐队进行职业演出了。
By age 15, he had become an apprentice to Sylvain Bailly, a well-known dessert chef with a successful bakery in one of Paris' most fashionable neighborhoods.
从15岁开始，他就成为了西尔文·贝利的学徒。西尔文·贝利是一位著名的甜点师，在巴黎最时尚的街区之一经营着一家成功的面包店。
By age 15, he had become an apprentice to Sylvain Bailly, a well-known dessert chef with a successful bakery in one of Paris's most fashionable neighborhoods.
从15岁开始，他就成为了西尔文·贝利的学徒。西尔文贝利是一位著名的甜点厨师，在巴黎最时尚的街区之一有一家成功的面包店。
By age 17, he was known for his talent in music.
17岁那年，他就因其音乐天赋出名。
Abing's father taught him to play many musical instruments, such as the drums, dizi and erhu, and by age 17, Abing was known for his musical ability.
阿炳的父亲教他演奏许多乐器，如鼓、笛子和二胡，17岁时，阿炳就因他的音乐才能而闻名。
In 1962, 50% of Americans were married by age 21.
1962年，有50%的美国人在21岁之前就结婚了。
With inflation, the family's spending on a child will total $286050 by age 17.
随着通货膨胀，家庭在孩子身上的花费在孩子17岁时将达到286050美元。
By age fourteen, she was teaching her free dance to young children and giving recitals.
到了14岁时，她开始教小孩子跳她的自由舞蹈，并举办个人舞蹈表演。
Senior citizen discounts are the essence of the very thing older Americans are fighting against-discrimination by age.
老年人特有的优惠正是美国老年人反对年龄歧视的本质。
Reactions can vary by age, too.
人们的反应也可能与年龄有关。
Life Lessons Learned by Age 26.
26岁时要学会的人生26课。
The old lady said she was lamed by age.
老妇人说她年纪大了，不中用了。
Another way of describing people is by age.
描述某个人的另一种方法是说他的年龄。
By age 100, the number spikes to 60 percent.
到了100岁，人数会增加到60%。
The top three problems by age group were
各年龄段出现最多的三个问题分别是
He intends to earn the two degrees by age 22.
他表示，希望自己能在22岁时获得上述两个学位。
Such effects varied by age and income level.
受危机影响的程度因年龄和收入水平而不同。
The next four firms by age are also Japanese.
接下来的四个长寿的公司也来自日本。
By age 50, it decreases to five to seven per cent.
50岁左右，就降低到百分之五到百分之七。
Similar differencesare found by age and skill level.
年龄和技术水平也发现有类似差别。
Children were randomly divided into pairs by age-group.
孩子们根据年龄段被随机分成两两一组。
Leading causes of death by age in the African Region, 2002.
2002年非洲区域按年龄分列的主要死亡原因。
But by age 2 she was stealing cupcakes at birthday parties.
2岁时，她就在生日宴会上偷杯形饼吃。
By age 28, I was vice President in charge of sales in the United States.
我表现出色，28岁就晋升为主管国内销售的副总裁，薪金优厚。
And half the women in the US will have an unintended pregnancy by age 45.
而且在美国，有半数妇女到45岁时都会有意外怀孕的经历。
And half the women in the US will have an unintended pregnancy by age 45.
而且在美国，有半数妇女到45岁时都会有意外怀孕的经历。
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