这需要付出很大的努力来维持。

It takes a great deal of effort to sustain.

youdao

我只有20元来维持我这一周了。

I only have $20 to see me through the week.

《牛津词典》

我仍然有时做女招待来维持生活。

I was still working on and off as a waitress to support myself.

《柯林斯英汉双解大词典》

The gods are very unhappy because they have now been assigned specific duties in the maintenance of the cosmos.

众神们因为被指派了任务而闷闷不乐,他们都有具体的工作来维持宇宙的运行。

耶鲁公开课 - 旧约导论课程节选

Now, recruiting is tremendously important because you need to have a certain number of settlers to make the settlement viable.

招募是极其重要的,因为你需要有一定数量的移民,来维持居住地的运转

耶鲁公开课 - 古希腊历史简介课程节选

Government is expensive "and it's fit that everyone who enjoys his share of the protection " should pay out of his estate."

维持政府是要花钱的,“凡享受保护的人，都应该从他的产业中,支出他的一份来维持政府“

耶鲁公开课 - 公正课程节选