?他從小就干這同一件工作,有50年了。的意思是指一個(gè)人從小就開(kāi)始從事同一份工作，并且已經(jīng)堅(jiān)持了50年。這種情況通常發(fā)生在那些對(duì)自己的職業(yè)充滿熱情，具有專(zhuān)業(yè)技能和經(jīng)驗(yàn)的人身上。這樣的人在同一份工作上已經(jīng)有了非常深厚的知識(shí)和經(jīng)驗(yàn)，可以被稱(chēng)為行業(yè)專(zhuān)家。

He has been doing the same job since he was a child, for 50 years. means that a person has been engaged in the same job since childhood and has been persisting for 50 years. This situation usually occurs in those who are passionate about their profession, have professional skills and experience. Such people have a deep knowledge and experience in the same job, and can be called industry experts.

怎么讀（音標(biāo)）：

他從小就干這同一件工作，有五十年了。[tā cóng xiǎo jiù gàn zhè tóng yī jiàn gōng zuò, yǒu wǔ shí nián le.]

用法：

“他從小就干這同一件工作，有五十年了”是一個(gè)簡(jiǎn)單的句子，通常用來(lái)形容一個(gè)人在某個(gè)職業(yè)或領(lǐng)域上擁有非常豐富的經(jīng)驗(yàn)和知識(shí)。它可以用來(lái)贊美那些長(zhǎng)期堅(jiān)持并取得成功的人，也可以用來(lái)描述一個(gè)人對(duì)某個(gè)領(lǐng)域的專(zhuān)業(yè)性和熱情。

例句1-5句且中英對(duì)照：

1. 他從小就干這同一件工作，有五十年了，所以在這個(gè)領(lǐng)域里他是無(wú)可匹敵的。

He has been doing the same job since he was a child, for 50 years, so he is unmatched in this field.

2. 這位老師從小就干這同一件工作，有五十年了，對(duì)于教學(xué)方法和技巧已經(jīng)是駕輕就熟。

This teacher has been doing the same job since he was a child, for 50 years, and is already familiar with teaching methods and techniques.

3. 那位老匠人從小就干這同一件工作，有五十年了，他手藝精湛，制作的木雕被譽(yù)為藝術(shù)品。

That old craftsman has been doing the same job since he was a child, for 50 years. His craftsmanship is superb and his wooden carvings are hailed as works of art.

4. 她從小就干這同一件工作，有五十年了，在她的指導(dǎo)下，公司取得了巨大的成功。

She has been doing the same job since she was a child, for 50 years. Under her guidance, the company has achieved great success.

5. 這家餐館已經(jīng)開(kāi)業(yè)五十年了，老板從小就干這同一件工作。他們家的招牌菜是傳承了五十年的秘方。

This restaurant has been in business for 50 years, and the owner has been doing the same job since he was a child. Their signature dish is a secret recipe that has been passed down for 50 years.

同義詞及用法：

1. 從事同一工作，有五十年了 [cóng shì tóng yī gōng zuò, yǒu wǔ shí nián le]：指一個(gè)人從事同一份工作，已經(jīng)堅(jiān)持了50年。

2. 長(zhǎng)期從事同一職業(yè) [cháng qī cóng shì tóng yī zhí yè]：指一個(gè)人長(zhǎng)期從事同一職業(yè)，具有豐富的經(jīng)驗(yàn)和知識(shí)。

3. 職業(yè)專(zhuān)家 [zhí yè zhuān jiā]：指在某個(gè)領(lǐng)域具有深厚知識(shí)和經(jīng)驗(yàn)的專(zhuān)家。

編輯總結(jié)：

“他從小就干這同一件工作，有五十年了”這句話可以用來(lái)形容那些對(duì)自己的職業(yè)充滿熱情，具有專(zhuān)業(yè)技能和經(jīng)驗(yàn)的人。他們?cè)陂L(zhǎng)期從事同一份工作后，已經(jīng)擁有非常深厚的知識(shí)和經(jīng)驗(yàn)，在自己的領(lǐng)域里可以被稱(chēng)為行業(yè)專(zhuān)家。這句話也可以用來(lái)贊美那些長(zhǎng)期堅(jiān)持并取得成功的人，展現(xiàn)出他們對(duì)自己職業(yè)的專(zhuān)業(yè)性和熱情。