Unsent Letter信件草稿
Unsent Letters书名
unsent messages未发信息;不送了信息;未发送成功短信夹
unsent-for未受邀请的
Sorrow comes unsent for悲哀来时不须邀
unbidden unsent-for未受邀请的
Show unsent invoices显示未发送发货清单
unsent-for r未受邀请既
The Unsent Letter未寄出的信
"the letter remained unwritten and unsent"