短语
寄出信用证
to send a credit
寄出信件
send letters
写信寄出
write off
;
write e off
;
written off
用快递方式寄出信件
express s the letter
未寄出的信
Letter Never Sent
这封信寄出去了吗
Send this letter do
;
This letter was sent out
永远寄不出的信
The ever unposted letter
信未寄出
I remember to post the letter