51、燕洗澡，天将雨；燕趴地，大雨到。
Swallow bathes, it will rain; Swallow lays on the ground, heavy rain.
52、群雁南飞天将冷，群雁北飞天将暖。
It will be cold in the South and warm in the north.
53、牛嚎猪吃草，雨下小不了。
The cattle howl and the pig eat grass.
