这只猫的腹部有一块白色的斑点。

There is a white spot on the cat's ___belly.

医生检查后发现胎儿的生长在子宫内完全正常。

The doctor confirmed the fetus was developing normally within the ___womb.

这个花瓶的中部有一个优雅的弧形隆起。

The ___center of the vase curved gently outward.