Sending letters by email or post mail is not very effective, so the school relies on contacting them through the phone or home visits.

而通过信件或电子邮件与父母联系也并非很有效，所以学校主要通过电话和家访与家长联系。

youdao

Sending letters by email or post mail is not very effective, so the school relies on contacting them through the phone or home visits.

而通过信件或电子邮件与父母联系也并非很有效，所以学校主要通过电话和家访与家长联系。

youdao