involution 발음
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- involution 뜻：noun, 말아넣음(넣은선)안으로 말림, 회선, 복잡, 혼란, (문법)복잡구문, (수)거듭 제곱법, 누승법, (생리)퇴화(degeneration)(의)복구 작용, 퇴축
