| 1. | In order to calculate how many fours digits there are, you could simply divide the initial decimal number by 4 .
为了计算有多少个四位数字，你可以简单地用4去除最初的那个十进制数。 |
| 2. | Was the last four digits of my social security number
也许是我的社安号的最后4位 |
| 3. | Was the last four digits of my social security number . .
也许是我的社安号的最后4位 |
| 4. | Was the last four digits of my social security number . .
也许是我的社安号的最后4位 |
| 5. | Is exactly four digits
必须为四位数。 |
| 6. | Matches a unicode character using hexadecimal representation exactly four digits
使用十六进制表示形式（恰好四位）与unicode字符匹配。 |
| 7. | For instance , suppose i added two digits to the example to make the year four digits
例如，假定我向上述示例添加了两位数字，使年份变成四位数。 |
| 8. | If the year has fewer than four digits , the number is padded with leading zeroes to achieve four digits
如果年份长度小于四位，则按需要在前面追加零以使显示的年份长度达到四位。 |
| 9. | Because the year in the japanese calendar is typically less than four digits long , this implementation always returns the value of the
因为日本历中的年份通常少于四位数，所以此实现总是返回 |
| 10. | Type must have no more than three digits to the left of the decimal and no more than four digits to the right of it
的文本元素或属性，它的格式必须符合小数点左边不超过三位数字，而且小数点右边不超过四位数字。 |
