The swift growth of this merchant marine diversified the northern colonial economy and made it more self-sufficient.

这艘商船的迅速发展使北方殖民地经济多样化，使其自给自足的能力更强。

youdao

After 1815 improved transportation enabled more and more western farmers to escape a self-sufficient way of life and enter a national market economy.

1815年以后，交通的改善使越来越多的西方农民摆脱了自给自足的生活方式，进入了国家市场经济。

youdao

Although she had various boyfriends, Madeleine was, and remains, fiercely self-sufficient.

尽管有过各种各样男朋友，马德琳过去和现在一直都非常自立。

《柯林斯英汉双解大词典》

"Around the world, our mission is the same to help women become self sufficient, achieve economic independence.

VOA: standard.2009.12.25

They became more self-sufficient, less dependent on other people as rated by themselves and as rated by their family members.

变得更加自立，更少依懒他们，不论是他们自己,还是家庭成员的评估都是如此。

哈佛公开课 - 幸福课课程节选

as a form of work that will allow him to be self-sufficient and self-determining.

允许他自给自足,自我决定的一项工作。

耶鲁公开课 - 现代诗歌课程节选

They are prevented from applying for certain jobs, making it harder to become self sufficient.

BBC: Heroin 'cheaper than a night out'

China can be a modern, fairly rich and self sufficient country able to defend itself against outside forces be they military or economic.

FORBES: China's Growing Problem Of Too Many Single Men

It turned out to be a very awkward relationship and after a few days she became completely self sufficient and never asked me to do any work.

FORBES: The Good Old Pre-Feminist Days