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词汇 bivalent
词根词缀
Online Etymology Dictionary
词根李平武蒋争

bivalent
adj.
1864, of chemicals, 1899, of chromosomes, from bi- + -valent, from Latin valentem, present participle of valere "be worth" (see valiant).

〔李〕a. [化] 二阶的 [bi- =two] ←-valent [L] =having...value表示“有⋯价的”
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更新时间:2025/1/9 23:51:10