If you land in the river, you will surely travel thousands of miles. It's easy to emigrate, and you don't plow anywhere. This theory seems too high, and I hesitate to choose. Seek expert translation

The meaning of this sentence is to use cultivated land to flood and emigrate to idle places to farm. It depends on the context. However, I personally think that this method is difficult to implement in today's society. China has a policy of protecting cultivated land, and migration is not a simple matter, which requires the coordination of multiple departments. You can refer to the resettlement project of the Three Gorges Dam.