7. 有圣诞卡片就要有圣诞邮票吗？

　　A number of nations have issued commemorative stamps at Christmastime. Postal customers will often use these stamps to mail Christmas cards, and they are popular with philatelists. Thesestamps are usually printed in considerable quantities。

　　没错啊，很多国家在圣诞的时候都会发行纪念邮票。人们也经常用这些圣诞邮票来寄他们的圣诞卡片，这些邮票通常质量都很好，常被收藏做集邮。