英语词汇sec. 50a怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	sec. 50a
释义	Examples: secant (of angle), written sec θ— 正割 US Securities and Exchange Commission (SEC)— 美国证券交易委员会 • 安全与交换委员会 • 证交会
随便看	four-master four match four member Board four member Board four membered four membered ring four member family four-member panel four member team four-metre four miles four million four million euro four million Euro four million thirty four-month high four month long four month old four months four months after four months following four months later four months old four more four moulds

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

secant (of angle), written sec θ—