英语词汇“optional”的意思、释义、用法及双语翻译-时代网

词汇	optional
释义	adjective Certain courses are compulsory; others are optional. 有些课程是必修的，其他是选修的。 This model comes with a number of optional extras (= things you can choose to have but which you will have to pay extra for). 这一型号有一系列可供选择的附件，价格另计。 Certain classes are compulsory, others are optional. These features can be offered as an optional part of the package. This model comes with a number of optional extras. 这一型号有一系列可供选择的附件，价格另计。
随便看	persecutory Persephone Perseus perseverance perseverances persevere persevered perseveres persevering perseveringly Persia Persian persian-cat Persian cat persiancat persian cats persians Persians Persil persimmon persimmons persist persisted persistence persistencies 揽辔揽辔中原揽辔澄清揽长工揾揾钱揾食揿搀搀假搀兑搀合搀和搀扶搀杂搀沙子搀言搁搁不住搁伙搁得住搁心搁手搁放搁栅

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