英语词汇“任择性”的读音、翻译、释义、用法及例句-集火网

集火网英语在线翻译词典收录了841188条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。

词汇	任择性
释义	任择性【法】 optional nature
随便看	operator precedence operator precedence grammar operator precedence language operator precedence matrix operator precedence method operator precedence parser operator precedence relation operator precedence technique operator priority order grammar operator priority order language operator prompting operator reference manual operator register operator response field operator ring operator schema operator's console operator selectable symbol operator service operator set-up time operator's licence operator's panel operator station operator's toll dialing system operator subgoaling