n.数字；位数；手指；脚趾
One digit always precedes the decimal point. 小数点前总有一个数字。
John's money quickly melted away as the double - digit inflation rate continued to soar. 随着两位数的通货膨胀率继续上升，约翰的钱很快就花光了。
She put a dressing on the mangled digit. 她包扎了被砍伤的脚趾。
