Apedia

Complementary 无 Kɔmplə'Mentəri A.互补的 Adj 1620s Ceremonious Complement

单词 complementary
音标 [kɔmplə'mentəri]
解释 a.互补的
红宝书
字源 complementary (adj.)
1620s, "ceremonious," from complement + -ary. Sense "forming a complement" attested from 1829, earliest in complementary colors.
不择手段背单词
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