人们上网寄送圣诞贺卡(“低碳环保”)，连账单也电子化了。

As Christmas CARDS have gone online (and "green"), so have bills.

youdao

人们上网寄送圣诞贺卡(“低碳环保”)，连账单也电子化了。

As Christmas CARDS have gone online (and "green"), so have bills.

youdao