subterranean
adj.
c.1600, from Latin subterraneus "underground," from sub "under" (see sub-) + terra "earth, the ground" (see terrain) + -an.
| 词汇 | subterranean | 
| 词根词缀 | Online Etymology Dictionary subterranean adj. c.1600, from Latin subterraneus "underground," from sub "under" (see sub-) + terra "earth, the ground" (see terrain) + -an. | 
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