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The word "curtly" is an adverb that describes a manner of speaking or behavior that is brief, blunt, and often rude or dismissive. It's derived from the adjective "curt," which means short or abrupt, and when applied to speech or actions, it implies a lack of warmth or politeness.

Here's the translation of the explanation:

你好，我是英语语言领域的专家，我在这里帮助你理解单词的细微差别和它们的用法。

"Curtly" 是一个副词，用来描述说话或行为的方式，这种方式是简短、直率的，通常带有粗鲁或打发人的含义。它源自形容词 "curt"，意思是短促或突然，当它被应用到言语或行为上时，它意味着缺乏温暖或礼貌。

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Rudely brief or abrupt, as in speech or manner: was curt and businesslike in the meeting; acknowledged him with a curt nod. See Synonyms at gruff. 2. Terse or condensed: a curt text message. [Middle English, short, brief, from Anglo-Norman, from Latin curtus; see sker- in Indo-European roots.]read more >>