request for proposal

例句：

1. 1. The company requested for a proposal on how to improve the production process.
   公司要求提交一份关于如何改进生产流程的建议。
2. 2. The team requested for a proposal on how to reduce waste in the manufacturing process.
   团队要求提交一份关于如何在制造过程中减少浪费的建议。
3. 3. The government requested for a proposal on how to improve public transportation.
   政府要求提交一份关于如何改善公共交通的建议。