The parents have brought their children upwell.

父把孩子培养得不错。

The upwell ing brings the thermocline—the boundary layer between deep, cold water and the warm water of the surface—up as high as 30 feet from the top.

上升流使得局部温层(深的冰冷海水和表面的温暖海水的水层)可鼓出10米之高。