俄语 ⇄ 英语

по закрытому каналу 强调
安全系统	secure (Alex_Odeychuk)
通讯	on a discreet channel (I'm speaking to you on a discreet channel. • He assumed they were talking on a discreet channel. • I've got a call for you on the discreet channel. Press the green button. 4uzhoj)
по закрытым каналам
安全系统	secure (Alex_Odeychuk)

по закрытому каналу: 2 短语, 1 学科

安全系统

2