A formal letter; a written communication.

【正】书札；书信。

In liturgical churches, an extract usu. From the Epistles read in the service.

教会礼拜仪式中诵或唱的日课(多选自使徒书)。

One of the letters written by the apostles in the New Testament.

[the ~] (常用复数)新约中的使徒书(如罗马书、哥林多前后书等)。