The problem of opposition between pairs

Hills and valleys, romantic landscapes, fields, birds, snakes, rats, vines and so on.

Do couplets to entertain the landlord

The first part: rice is planted in the field, cotton is planted in the field, and farmers are busy and fall into this field.

The second part: the river pushes the waves, the lake chases the waves, and the chivalrous man wants to travel in the rivers and lakes.

I am incompetent, please don't copy it as a feeling.

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