重点词汇
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字母
letter; character; lettering; grapheme; alphabetical; alphabetic
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发明
invent; create; devise; originate; father; contrive; imagineer; think up; invention; innovation; discovery; contrivance; brainchild
中英释义：
字母是谁发明
时间: 2025-06-02 10:29:45
Who invented letters?