A commemorative stamp will be issued October 15.
一枚纪念邮票将于10月15日发行。
He says he'll have no problem authenticating the stamp.
他说他完全可以鉴定这枚邮票。
The stamp was a dark， dull blue colour with a heavy black postmark.
这枚邮票是模糊的暗蓝色的，上面盖着一个粗黑色的邮戳。
The new chip will be made from a piece of silicon about the size of a postage stamp.
这种新的芯片将由大约邮票大小的一块硅片制成。
Please show your stamp to us.
请把你的邮票给我们看看。
There is no stamp on the stamp.
那张邮票上没有盖图章。
