at the age of

at the age of的音标是[əˈtʃiːz əv ləʊs]，翻译为在……岁时。速记技巧是：可以简写为“A.C.O.L.O.”或者“阿切·索尔·奥斯”。

at the age of 的英文词源为at the age of which。其中，at the age of 是固定短语，表示“在某个年龄”，其中的of which 是一个插入语，表示“其中的”，整体意思是“在其中的年龄”。

变化形式：在英文中，at the age of 的变化形式通常不会改变其含义和用法。

相关单词：

1. childhood：词源同child，同义词有innocence，意为“童年时代”。

2. adolescence：词源同adolescent，意为“青春期”。

3. maturity：词源同ripe，意为“成熟期”。

4. senescence：词源同senior，意为“衰老”。

5. youth：词源同youthful，意为“青年时代”。

6. middle-age：意为“中年时代”。

7. elderly：意为“老年时代”。

8. youthful：意为“青春的”。

9. juvenile：意为“少年的”。

10. infant：词源同infantile，意为“婴儿的”。

以上单词都与年龄和成长有关，描述了不同年龄阶段的特点和变化。这些单词的使用也反映了人们对不同年龄阶段的认知和情感。

常用短语：

1. at the age of ten

2. at the age of twelve

3. at the age of thirteen

4. at the age of fourteen

5. at the age of fifteen

6. at the age of sixteen

7. at the age of seventeen

例句：

1. He started working at the age of ten, to help support his family.

2. She started going to school at the age of twelve, and has always been a hard worker.

3. At the age of thirteen, she decided to pursue a career in music, and has never looked back.

4. At the age of fourteen, he started training as a professional athlete, and has gone on to achieve great success.

5. At the age of fifteen, she made her debut as a singer, and has since become one of the most popular artists in her country.

6. At the age of sixteen, he started his own business, and has gone from strength to strength ever since.

7. At the age of seventeen, she realized her dream of becoming a doctor, and has dedicated her life to helping others.

小作文：

When I was young, I always dreamed of becoming a doctor. I remember at the age of twelve, I watched my mother struggle with illness and realized that there were people who needed help more than I did. From that moment on, I knew that I wanted to dedicate my life to helping others and making a difference in their lives. Now, at the age of twenty-two, I am finally able to fulfill my dream and work as a doctor in a local hospital. I am constantly amazed by the impact that I am able to have on people"s lives and how much it means to them when they are able to receive help and support from someone who truly cares about them. I hope that I can continue to make a difference in the lives of others for many years to come.