不可数。n.通讯，[通信] 通信交流信函。Good communication is key to our success。良好的沟通是我们成功的关键。We are in regular communication by letter。我们定期通信联系。Television is an effective means of communication。电视是一种有效的通信手段。All channels of communication need to be kept open。所有沟通渠道都得保持畅通无阻。Role-play is helpful in developing communication skills。角色扮演有助于提高沟通技巧。