英语单词“optional”的翻译、意思、用法、释义-英汉词典

单词	optional
释义	optional['ɔpʃənəl]adj.1.■可选择的，任选的，随意的，非强制的
随便看	specular reflector specular schist specular transmittance speculate speculation speculative speculative philosophy speculator speculatory speculum speculum metal sped sped或speeded speech speech act speech amplifier speech area speech bandwidth speech centre speech clinic speech clipper speech clipping speech code speech community speech compression 天游观妙化，人世事皆轻药圃无凡草，松庭有素风才子尊前画，将军石上铭隶而从者，崔氏二小生：曰恕己，曰奉壹蓬莱无路海无边，方士舟中相枕死当年赋咏人何在，此日登临事已非至精为神，元气为躯亭亭俨相持，撑云空百尺蜃气遥浮沧海东，离离晓现蓬莱宫汉阴逢荷筱送圆禅人偈倾一百三十三首偈颂六十八首挽吕惇智秋日杂咏六首贼驴贼气贼精贼伴贼蟊