deep seaWiktionary 原文英美构词拆解deep词干+sea词干词源链中古英语Middle English约 1150–1500 年depe see↓ 继承英语Englishdeep sea词源说明From Middle English depe see, equivalent to deep + sea.释义名词noun1The deeper part of the sea or ocean in which no light penetrates.2(fishing) An open sea. (the part of the sea that is out of sight of land)同族词派生词 1deep space相关词