adj.有收益的，有报酬的，有利可图的

She found a gainful part-time job at a local bookstore.
她在当地一家书店找到了一份有收入的兼职工作。
His small business turned out to be a gainful venture.
他的小生意结果证明是盈利的。
He quit his unfulfilling job and started a gainful online business.
他离开了那份没有成就感的工作，开始了自己的盈利网络事业。
The farm provided a gainful income for the family.
这个农场为这家人提供了可观的收入。
She pursued a gainful career in finance after graduating.
毕业后，她投身于金融行业，寻求一份有收益的职业。
Many people find gainful employment in the tech industry.
许多人在科技行业找到了有收益的工作。
The government implemented programs to encourage gainful self-employment.
政府实施了项目来鼓励自雇并获得收益。
A gainful retirement plan is essential for financial security.
一个有利可图的退休计划对财务安全至关重要。
His hobbies eventually turned into a gainful side hustle.
他的业余爱好最终发展成了一份有收益的副业。
The program aims to provide young adults with gainful job opportunities.
这个项目旨在为年轻人提供有收益的工作机会。