The proposed solution was ruled out as too expensive.

建议的解决方案被认为花钱太多而遭否决。

《牛津词典》

One proposed solution to this problem is the automated highway system.

针对这个问题，有人提出使用自动化公路系统作为解决方案。

youdao

Is the proposed solution correct?

提议的解决方案正确吗？

youdao

Now there is a proposed solution.

VOA: special.2010.09.17

Australian Prime Minister Rudd is reported to have proposed a so-called "Indonesia solution" to the problem of escalating illegal boat arrivals on Australian shores.

VOA: standard.2009.10.27

One proposed solution for long-term storage of used fuel is Yucca Mountain in Nevada.

CNN: Nuclear disasters: Is the fear realistic?

As for the overseas cash problem, McCourt has a proposed solution: Make paying dividends tax deductible.

FORBES: Cash Hoards Are Destroying Value In The Tech Sector

The Valley too has valid complaints, and its proposed solution may herald the break-up of the city.

ECONOMIST: Los Angeles