A number mask is represented by a series of Xs or asterisks, and replaces the number of digits that follow the prefix for a telephone number.是什么意思_A number mask is represented by a series of Xs or asterisks, and replaces the number of digits that follow the prefix for a telephone number.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句