英语词汇“not once”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	not once
释义	not once短语¹¹⁸²⁵ 基本例句 adv.一次也不 In six years of studying economics, not once did I hear the word“ ecology”. 在学习经济学的六年中，我从没听过“生态保护运动”这个词。 yeeyan
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