英语词汇23. optional protocol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	23. optional protocol
释义	Optional Protocol noun— 议定书 n () See also: optional — 任择 adj • 可选的 adj • 选配 adj • 选购 adj • 自选 protocol n — 协定 n • 规程 n • 礼宾 n option n — 方案 n • 选择 n • 可选择的事物 n • 选择权 n • 选修课 n • 购买权 n option — 选择 • 期权
随便看	holding the attention holding the axis holding the camera holding the door open holding their own holding the line holding them accountable holding them back holding the meeting holding them together holding the option holding the perpetrators to account holding the presidency holding the secretariat holding the view holding things holding things together holding this position holding this post holding tight holding time holding title holding torque holding training holding transfer

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Optional Protocol noun—