To attempt the impossible; to engage in a futile endeavor; to pursue an unattainable goal.
如果想不付出任何努力就取得巨大的成功，那简直是蒸沙作饭，最终只会白费力气。
If you want to achieve great success without putting in any effort, that's like steaming sand to make rice, which will only lead to a futile effort in the end.
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