英语词汇“optional”的读音、翻译、释义、用法及例句-开邑网

词汇	optional
释义	optionaloptionalD.J.:[ˈɔpʃənl]K.K.:[ˈɑpʃənəl]adj.1.■可选择的, 非强制的The goods are optional, but only one.这些物品是可以任选的, 但只能选一个。
随便看	pregeminal pregeminum pregena pregenacerore pregenerated operating system pregenicular annulus pregeniculate pregenital pregenital plate pregenital sclerite pregenital segment pregenital sternite pregeologic pregeological pregermination pregermlayer stage pregestational projection on meridian projection operator projection optical system projection optics projection optimeter projection oscillograph projection perimeter projection picture size

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