upper lowercase letters

上小写字母

双语例句

1

Your password must be at least six characters and may contain numbers, upper and lowercase letters, and standard symbols. Do not include spaces or extended ( international) characters.

密码的长度至少为六个字符，并且可以包括数字、大小写字母和标准符号。不允许包含空格或扩展（国际）的字符。

2

A good passphrase is relatively long and contains a combination of upper and lowercase letters and numeric and punctuation characters.

好的口令短语一方面具有相应的长度，另一方面需要包含大写字母、小写字母、数字和标点符号。