[] () the practice of telephoning or visiting sb that you do not know in order to sell them sth 陌生客户电话拜访，陌生客户逐户探访，冷不防打电话拜访（以便向他们推销某物）◆One million people have said no to junk mail and cold-calling. 一百万人拒绝了垃圾邮件和陌生客户电话拜访。◆a course for professionals who want to improve their cold-calling skills 面向希望改进陌生客户电话拜访技巧的专业人员的课程▸ˌcold-ˈcall