The parents have brought their children upwell.

父母们把孩子培养得不。

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.

流使得局部温层(深处的冰冷表面的温暖交界处的层)可鼓出10米之高。