He dived below the surface of the water.

他潜入了水中。

《牛津词典》

Rage bubbled just below the surface of his mind.

怒火在他心中燃烧，随时可能迸发。

《牛津词典》

Wetlands have a big effect on groundwater, the amount of water below the surface of the land.

湿地对地下水，即地表以下的水量影响很大。

youdao

Carlsbad Caverns National Park contains more than one hundred caves below the surface of the desert.

VOA: special.2009.12.07

This tactile mastery attests to something remarkable that's happened over the course of the poem, somewhere below the surface of the poem, somewhere between the lines.

这种触觉的掌控证明了一些发生在诗歌里的意义非凡的事情,这些事情贯穿诗歌的整体，暗藏在诗歌的表面之下，深埋在字里行间。

耶鲁公开课 - 弥尔顿课程节选

These lay deep below the surface of the Earth.

VOA: special.2009.03.04

Astrobiological researchers have discovered significant regions below the surface of Mars that could be habitable for Earth-based life.

FORBES: Parts Of Mars May Be Habitable For Earth-Based Life

Serious problems may be lurking below the surface of many homes, said the report, published by the Joseph Rowntree Foundation.

BBC: Welsh houses are 'crumbling'

The sacred carp accumulated in a great heap below the surface of the water, their gaping circular mouths angled upward.

NEWYORKER: The Sanctuary