I bought a set of the new stamps on the date of issue.
我在新邮票发行的当天就买了一套。
《牛津词典》
2
Comparing weather reports with datestamps can reveal whether a video or photograph really was taken on a particular date.
比较有日期的气象报道可以表明一段视频或者一张照片是否是在某一天照的。
3
Shadows can indicate the time of day. Comparing weather reports with datestamps can reveal whether a video or photograph really was taken on a particular date.