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》

Since 2 has only one digit, return it.

因为2只有一个数字，所以返回2。

youdao

I was one digit off.

我计算错了一位数。

youdao

I was one digit off.

我计算错了一位数。

youdao