Hearing the news of my daughter, I went out to help Guo; As soon as Sister A heard that Sister Mei was coming, she had to cut her red makeup. When I heard my sister coming, I sharpened my knife at pigs and sheep.
Buy horses in the east, saddles in the west, reins in the south and whip in the north.
Metaphor:
When two rabbits walk side by side, can I tell if I am a male or a female?