environvt.
英 ɪn'vaɪrən; en- | 美 ɪn'vaɪrən
中文vt. 环绕；包围；（敌意地或保护性的）围住
词根词源
environ (v.)late 14c. (implied in environing), "to surround, encircle, encompass," from Old French environer "to surround, enclose, encircle," from environ "round about," from en- "in" (see en- (1)) + viron "a circle, circuit," also used as an adverb, from virer "to turn" (see veer). Related: Environed.
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