mailshot
noun [ C ] mainly UK uk/ˈmeɪl.ʃɒt/ us/ˈmeɪl.ʃɑːt/ (US usually mass mailing)
（广告或类似材料的）批量邮寄，群发
the posting of advertising or similar material to a lot of people at one time
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。