您要查找的是不是：
- By the age of seven he could write beautifully. 他七岁时字就写得很漂亮了。
- In some sports you're past it by the age of 25. 在某些运动中，人过25岁就难有作为了。
- By the age of 40, Beethoven was completely deaf. 贝多芬在四十岁时全聋。
- Autism generally appears by the age of three. 孤独症通常出现在三岁左右。
- At the age of thirteen, Tom was left penniless by the death of his father, so he had his own way to make. 在13岁时汤姆的父亲死了，没留分文给他，所以，他得自食其力。
- An informal performance by folk singers, typically with participation by the audience. 民歌歌会民歌手的非正式表演，其特点是有观众的参与
- By the age of 21 he controlled the company. 他21岁就掌管了公司。
- Children ought to be able to read by the age of 7. 儿童7岁时应该识字了。
- By the age of 10 he had played the piano. 在10岁的时候他已经学会了弹钢琴。
- participation by the aged 老年人参与
- By the age of forty, he had become famous. 岁之前他就成名了。
- The aged leader was exhausted by the exaction of a pitiless system. 作为年迈的领导人，冷酷无情制度的苛求使他心力交瘁。
- By the age of 70, he understood the play of the real world. 年届七十，他才读懂了现实世界的行动准则。
- Let's go for a picnic by the riverside. 我们到河边野餐去吧。
- In particular, special emphasis was placed on participation by the grassroots and the middle class sectors; the wider the participation, the better. 广泛性就特别强调基层及中产阶级的参与,希望可以越多越好,而且强调均衡参与。
- Party hardliners fear such moves would allow indirect participation by the PLO, which Is rael considers a terrorist organ ization. 以色列强硬派人士害怕如此一来将会导致巴勒斯坦解放组织间接的参与。以色列视该组织为一恐怖组织。
- By the age of fourteen, he had learned advanced maths. 到十四岁时,他已学习高等数学。
- The participation by the USCS member organizations in the collaborated projects organized by the Council is entirely voluntary. 成员组织参加这类活动将是完全自愿的。
- By the age of sixteen, he had learned to drive a car. 到十六岁时候,他已经学会了开车。
- She was possessed by the desire to be rich. 她被致富的欲望所支配。
