Which three letters can frighten a thief away?
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解析：
What word contains seven letters? The first two letters stand for a man. The first three letters for a woman.The first four for a great man. And the whole for a great woman.
猜一個包含7個字母的單詞？前兩個字母代表一個男人。前三個字母為一個女人。前四個為一位偉大的人。整個單詞是一個偉大的女人。
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解析：
