词汇 | variance |
词根词缀 | 词源: mid-14c., "fact of undergoing change," from O.Fr. variance, from L. variantia, from variare "to change" (see vary). Meaning "state of disagreement" is recorded from early 15c. The U.S. zoning sense of "official dispensation from a building regulation" is recorded from 1925. 词根记忆: n. 变化;相异(vari+ance)[vari=vary,change,表示"变化"] |
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