in the concrete

例句：

1. 1. She was asked to present her ideas in the concrete.
   她被要求具体地提出她的想法。
2. 2. The company plans to invest $50 million in the concrete sector.
   该公司计划在具体行业投资5000万美元。
3. 3. We need to work on the concrete details before we can move forward.
   在我们能向前推进之前，我们需要具体地处理细节。