Agricultural R&D should be close to actual needs and not divorced from the production front.
农业科技研发要贴近实际需求，不能脱离生产一线。
设计实验的最佳时间是在你完成它之后。
The law isn't justice. It's a very imperfect mechanism. If you press exactly the right buttons and are also lucky, justice may show up in the answer.