英语词汇optional的翻译、用法及例句-MX2U.com英汉词典

词汇	optional
释义	optional /ˈɔpʃən(ə)l/ adj.任选的；可自由选择的 Is English an optional lesson, or does everyone have to learn it?英语是选修课还是每个人必修的课程？
随便看	indolent indomitable Indonesia Indonesian indoor indoors indorse indorsement indrawn indubitable induce inducement induct inductance induction inductive inductor indue indulge indulgence indulgent indurate industrial industrial action industrial archaeology 浚浚浚浚浚浚浚浚浚浚浚浚浚浚浚浚浛浛浛浛

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