To attempt the impossible; to engage in a futile endeavor; to try to achieve something that is fundamentally unachievable.
试图在没有足够资源的情况下启动这个大型项目，简直是蒸沙成饭，注定不会有结果。
Trying to launch this large-scale project without sufficient resources is like steaming sand into rice, destined to yield no results.
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