Everything he achieved in life was earned the hard way and his success in the literary field was no exception.

他在生活中所取得的一切都是来之不易的，其在文学领域的成功也不例外。

youdao

While you are in the prime of life, why not devote yourselves to a special field of study?

为什么不把握人生中最美好的时间，努力做一种专门学问呢？

youdao

His chosen field was unlikely to be a meal ticket for life.

他选的这一行当是不可能赖以为生的。

《柯林斯英汉双解大词典》

As a life-long member of this field, that caught my eye.

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Unlike regulations promulgated by EPA, which are designed to punish those within the industry, FDA regulations encourage innovation in the field by fast-tracking life-saving new drugs and offering independent research for all drug manufacturers.

FORBES: Regulatory Lessons from Obama EPA Appointee's Resignation

Mourinho has had concerns over Obi's poor timekeeping and his life off the field and he axed the 19-year-old from his squad for over a month.

BBC: SPORT | Football | African | Mourinho challenges Obi