Her telephone number differs from mine by one digit.

她的电话号码跟我的差一个数字。

《柯林斯英汉双解大词典》

The regular expression for Australia, shown in Listing 8, includes the state or territory abbreviation, the required space (either one or two), and a four-digit number.

用于澳大利亚的正则表达式包括州或地区的简称，需要的空格(一个或两个)，以及一个四位数，如清单8所示。

youdao

The process of dividing one number by another without writing down all the steps, especially when the divisor is a single digit.

一个数被另一个数所除，但不写下所有步骤的过程，尤其当除数是一位数时。

youdao

Percent D is for a digit, like a number or-- one or more digits.

d代表以数字的形式输出，比如一个数字或者--1或更大的数。

哈佛公开课 - 计算机科学课程节选

Television, vile on so many levels, is a carrier of the zero-sum disease: There is only one Survivor, one American Idol and a single-digit number who escape Donald Trump's wagging finger.

FORBES: Magazine Article

Similarly and perhaps more so for the Southwest region where number one seeded Kansas is competing against 3 double-digit seeds, there may be a perception that they will run away with the regional, and as such, this lack of suspense might be retarding consumer demand and hence secondary ticket prices.

FORBES: Location, Matchups Drive Secondary Ticket Price Increases For NCAA Regionals