相互通信 | [そうごつうしん, sougotsuushin] (n) intercommunication (usu. in telecomms contexts) [Add to Longdo] |
It means they write letters they only communicate by mail. | [CN] 也就是说他们相互通信 只通过信件来往 The Intouchables (2011) |
相互通信 | [そうごつうしん, sougotsuushin] intercommunication [Add to Longdo] |