让我们学写前三个字母。
乌里发现，一个人工作单位的名字和此人姓名的前三个字母关系最为密切。
Uri found that the name of a person's workplace more closely correlated with the first three letters of a person's name.
前两个字母代表一个男人，前三个字母代表一个女人，前四个字母代表一位男英雄，整个单词代表一位女英雄。
The first two letters stand for a man, the first three for a woman, the first four for a brave man, and the whole for a brave woman.
七个小写字母和字母数字字符，前三个字符为字母，而后四个字符为数字。
Seven lowercase and alphanumeric characters, first three characters being alphabetic and the last four characters being digits.
七个小写字母和字母数字字符，前四个字符为字母，而后三个字符为数字。
Seven lowercase and alphanumeric characters, first four characters being alphabetic and the last three characters being digits.
七个小写字母和字母数字字符，前四个字符为字母，而后三个字符为数字。
Seven lowercase and alphanumeric characters, first four characters being alphabetic and the last three characters being digits.
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