"I'm depghted to receive your letter" 意思是 "我很高兴收到你的信"。
这句话来源于英语日常用语，表示收到某人的信件或邮件时的感受。
例句1: "I'm depghted to receive your letter, it's been a long time since I heard from you." (我很高兴收到你的信，已经很久没有收到你的消息了)
例句2: "Thank you for your email, I'm depghted to receive it." (谢谢你的电子邮件，我很高兴收到它)