The code is the first four digits of every cell phone number. No matter where you are, you cannot call a cell phone number without this code.
这个代码就是手机号的前四位，不管从哪个地方打电话，都不能少了这4位。
If a match is made, the first three digits are captured in the first set of parentheses, the next three digits in the second set; and the final four digits in the remaining operator.
如果找到匹配，则把前三个数字捕捉到第一组括号中，把接下来的三个数字捕捉到第二组括号中；并且把最后四个数字捕捉到剩余操作符中。
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，前三个字符为字母，而后四个字符为数字。
By the way, don't tell the Y2K folks we're ignoring the first two digits of a four-digit year.
顺便说一下，应该告诉那些研究y 2k的人您省略了年份的前两位数。
'With just four attempts he was also able to identify the first five digits of the test subjects' social security Numbers, potentially a goldmine for id thieves.
仅仅经过了4次尝试，他就成功鉴别出实验对象的社保号码前五号。这对于ID小偷来讲可是一个金矿。
With just four attempts he was also able to identify the first five digits of the test subjects' social security Numbers, potentially a goldmine for id thieves.
仅仅经过了4次尝试，他就成功鉴别出实验对象的社保号码前五号。这对于ID小偷来讲可是一个金矿。
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。
We don't want decimal numbers with fewer than four digits - excluding leading zeroes - so that 2992 is the first correct answer.
我们不想十进制数字少于四位数-不含前导零，2992是第一个正确答案。
We don't want decimal numbers with fewer than four digits - excluding leading zeroes - so that 2992 is the first correct answer.
我们不想十进制数字少于四位数-不含前导零，2992是第一个正确答案。
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