O 開(kāi)頭單詞

oppress vt.使煩惱，使意氣消沉，使氣餒，使無(wú)精神v.虐待，欺侮

oppositive reaction [化學(xué)]對(duì)峙反應(yīng)

oppositive adj.反對(duì)的；表示反對(duì)的；相反的

oppositions n.異議（opposition的復(fù)數(shù)）

oppositionist n.反對(duì)黨人；反對(duì)派成員

oppositionism n.反對(duì)論

oppositional allele [生物學(xué)]對(duì)立等位基因

oppositional adj.反對(duì)的；對(duì)抗的

opposition party 反對(duì)黨；在野黨

opposition n.（強(qiáng)烈的）反對(duì)，敵對(duì)adj.反對(duì)的，對(duì)抗的

oppositeness adj.相反的；對(duì)面的；對(duì)立的prep.在 ... 對(duì)面；演對(duì)手戲adv.在對(duì)面地；處于相反位置地n.對(duì)立物；對(duì)立者；對(duì)手

oppositely directed photons [能源科學(xué)技術(shù)]反向光子[物理學(xué)]反向光子

oppositely charged ion [化學(xué)]電性相反的離子

oppositely charged electron [化學(xué)]電性相反的電極

oppositely adv. 反向地；在相反的位置；面對(duì)面