它很容易使用，寄卡片给多的人在几秒钟内。

Its very easy to use, send cards to multiple people in seconds.

谦逊地联络即将失去的朋友。写信，寄卡片或电子邮件，邀请他们谈话或聚会。

Be humble and reach out to your lost friend. Write a letter, send a card or an email, and invite them to talk or get together.