The letters refer to those carriers which transit information by using sealed envelopes.
信函是指以套封形式传递的缄封的信息的载体。
Transcripts and teacher recommendation letters must be sent directly from the school in stamped, sealed envelopes.
成绩单及教师推荐信必须由学校盖章、密封，并直接递送。
Yes, you can ask the doctor's office that's treating you for a venereal disease to call you only on your cellphone and put any mail in plain sealed envelopes, and they should comply.
病人可以通过打电话或者发邮件去问主治医生我究竟得的是什么病，但是医生应该遵守约定，使得这些方式成为绝密的信息获得途径。
He gave her four envelopes. Three were unsealed CARDS from old friends. The fourth was sealed, in Myra's writing. The old lady felt a pang of disappointment.
他交给她四封信。三封没封口，是老朋友寄来的生日卡。第四封是封口的，上面的字迹出自于迈拉之手。失望的痛楚攫住了老太太的心头。
He gave her four envelopes. Three were unsealed CARDS from old friends. The fourth was sealed, in Myra's writing. The old lady felt a pang of disappointment.
他交给她四封信。三封没封口，是老朋友寄来的生日卡。第四封是封口的，上面的字迹出自于迈拉之手。失望的痛楚攫住了老太太的心头。
应用推荐