Capitals and small letters are known as upper case and lower case respectively.

西文大写字母和小写字母均分别称作西文大写字盘和西文小写字盘。

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Capitals and small letters are known as upper case and lower case respectively.

西文大写字母和小写字母均分别称作西文大写字盘和西文小写字盘。

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