"A woman is 30 like a wolf, 40 like a tiger, and 50 sitting on the ground can suck soil, which shows that women have strong sexual desire after 30 years old, while men's sexual ability declines after 30 years old, which is more difficult to deal with.

In a single case, the tiger is fiercer than the wolf. Sitting on the ground and sucking soil is a bit exaggerated, that is, a woman's uterus and vagina contract and suck soil.