深层shēncéngTop 9000Meanings1. deep layer2. deep; deep-seated; underlyingCharacters used深deep层layerExamples1海洋hǎiyáng的de深层shēncéng仍然réngrán几乎jīhū未wèi被bèi探索tànsuǒ。The deep layers of the ocean are still almost unexplored.