While travelling on an eTicket, one must carry one of the authorized valid Photo Identity Cards.

使用电子客票时，必须携带有效的已获授权拍照身份证。

youdao

While travelling on an eTicket, one must carry one of the authorized valid Photo Identity Cards.

使用电子客票时，必须携带有效的已获授权拍照身份证。

youdao