the depths of the ocean/countryside/forest etcDNMIDDLEthe part that is furthest away from people, and most difficult to reach 海洋深处/偏远的乡村/森林深处等 Astronomers may one day travel to the depths of space. 天文学家也许有一天可以到太空深处去。
the depths of the ocean/countryside/forest etc• The sporadic gunfire, explosions and shouting in the depths of the forest, seemed to belong to a different world.• So the depths of the oceans are full of lights moving rhythmically around and continually turning off and on.• Illegal activity is not limited to the depths of the forest.
→ the depths of the ocean/countryside/forest etc at depth(3)