柯林斯詞典postmark /?p??st?mɑ?k/ (postmarks) 1. N-COUNT A postmark is a mark that is printed on letters and packages. It shows the time and place at which something was mailed. 郵戳 All the letters bore an Abilene postmark. 所有信件上都蓋有阿比利尼的郵戳。 返回 postmark劍橋詞典an official mark put on a letter or parcel , typically showing the place that it was sent from and the time or date that it was sent 郵戳 返回 postmark