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    supposedto 对比辨析
    分析 词典对比 组词对比
    作为语言学专家,我将从语法功能、语义特征和翻译处理三个维度解析"supposed to"的用法: 一、语法结构特征 1. 情态被动结构:"be supposed to"构成固定情态短语 - 现在时:am/is/are supposed to - 过去时:was/were supposed to - 完成时:have been supposed to 2. 否定形式: - 直接否定:not supposed to (禁止性更强) - 动词否定:supposed not to (语气较委婉) 二、语义功能谱系 1. 义务性用法 (deontic modality ...(以上内容有节略,please sign in for more)
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