terra incognita
n.
"unknown or unexplored region," 1610s, Latin, literally "unknown land," from terra (see terrain) + fem. of incognito.
| 词汇 | terra incognita |
| 词根词缀 | Online Etymology Dictionary terra incognita n. "unknown or unexplored region," 1610s, Latin, literally "unknown land," from terra (see terrain) + fem. of incognito. |
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