All the tickets are coded. 所有的票都编了号。
Examiners only see coded scripts. 考官们只能看到有代号的答卷。
He had been sending coded messages to the enemy. 他一直给敌人发送密码信息。
Her speech was a coded attack on the former leader. 她的演讲是对前任领导变相的攻击。