excavationn.
英 ekskə'veɪʃ(ə)n | 美 ,ɛkskə'veʃən
中文n. 挖掘，发掘
词根词源
excavation (n.)1610s, "action of excavating," from Latin excavationem (nominative excavatio) "a hollowing out," noun of action from past participle stem of excavare "to hollow out" (see excavate). Meaning "an excavated place" is from 1779.
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