一组字母数字序列，可使进入如电话网络或自动取款机的电子网络。

An alphanumeric sequence that permits access to an electronic network, such as a telephone network or an automated teller machine.

youdao

一组字母数字序列，可使进入如电话网络或自动取款机的电子网络。

An alphanumeric sequence that permits access to an electronic network, such as a telephone network or an automated teller machine.

youdao