From seven months of pregnancy, a mother starts to feel episodic precursory contractions of the uterus that are the sign of these maturations toward the instability, giving birth to the baby, the dragon-king.
从怀孕7个月，母亲开始时不时感到子宫收缩的前兆， 也就是不稳定正在慢慢成熟的信号， 宝宝就要出生了， 也就是龙王。