cold-calling
noun [ U ] uk/ˈkəʊldˌkɔː.lɪŋ/ us/ˈkoʊldˌkɑː.lɪŋ/
（未经要求而打给潜在客户的）冷不防电话，促销电话
the activity of calling or visiting a possible customer to try to sell them something without being asked by the customer to do so
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。