The parents have brought their children upwell.

父母们把孩子培养得不错。

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(的冰冷海水和表面的暖海水交界的水)可鼓出10米之高。