N-COUNT （用作宣传或慈善募捐的）邮寄资料，邮寄广告材料 A mailshot is a letter advertising something or appealing for money for a particular charity. Mailshots are sent out to a large number of people at once. （用作宣传或慈善募捐的）邮寄资料，邮寄广告材料 [British]