The parents have brought their children upwell.

父母们把孩子培错。

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.

上升流使局部温层(深处冰冷海水和温暖海水交界处水层)可鼓出10米之高。