7 sentences

1. 我会给你寄明信片。

   wǒ huì gěi nǐ jì míng​xìn​piàn.

   I'll send you a postcard.

   Source: OpenSubtitles

2. 请给我五张明信片邮票。

   qǐng gěi wǒ wǔ zhāng míng​xìn​piàn yóu​piào.

   Five postcard stamps, please.

   Source: OpenSubtitles

3. 我们会给你寄些明信片。

   wǒ​men huì gěi nǐ jì xiē míng​xìn​piàn.

   We'll send you some postcards.

   Source: OpenSubtitles

4. 这家礼品店卖很多明信片。

   zhè jiā lǐ​pǐn​diàn mài hěn​duō míng​xìn​piàn.

   This gift shop sells many postcards.

   Source: Dong Chinese Dictionary

5. 我买了一张明信片留作纪念。

   wǒ mǎi le yī zhāng míng​xìn​piàn liú​zuò jì​niàn.

   I bought a postcard as a souvenir.

   Source: Dong Chinese Dictionary

6. 他在旅游时给朋友寄了一张明信片。

   tā zài lǚ​yóu shí gěi péng​you jì le yī zhāng míng​xìn​piàn.

   He sent a postcard to his friend while traveling.

   Source: Dong Chinese Dictionary

7. 这里的邮局非常有名，很多人专门来梵蒂冈寄明信片。

   zhè​lǐ de yóu​jú fēi​cháng yǒu​míng, hěn​duō rén zhuān​mén lái Fàn​dì​gāng jì míng​xìn​piàn.

   The post office here is very famous; many people visit the Vatican specifically to mail postcards.

   Source: Dong Chinese Dictionary