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1·They're both doctors by profession.

他们两人的职业都是医生。《牛津词典》

2·Harper was a teacher by profession.

哈珀的职业是教师。《柯林斯英汉双解大词典》

3·He was an electrician by profession.

他的职业是电工。《牛津词典》

4·She's a nurse by profession and now runs a counselling service for women.

她是护士出身，现在经营着一家针对女性的咨询服务公司。《柯林斯英汉双解大词典》

5·He is a doctor by profession.

他的职业是医生。

6·He is a diplomat by profession.

他的职业是外交官。

7·I'm a carpenter by profession.

我的职业是木匠。

8·He's a doctor by profession.

他的专业是医生。

9·I'm a pastry chef by profession.

我是个职业蛋糕厨师。

10·I'm a lawyer by profession.

我的职业是律师。