5 sentences for 盖上 (gài​shàng — to stamp)

1. 皇帝在诏书上盖上了玉玺。

   huáng​dì zài zhào​shū shàng gài​shàng le yù​xǐ.

   The emperor pressed the imperial jade seal onto the edict.

   Source: Dong Chinese Dictionary

2. 合同上必须盖上公司的公印。

   hé​tong shàng bì​xū gài​shàng gōng​sī de gōng yìn.

   The company's official seal must be stamped on the contract.

   Source: Dong Chinese Dictionary

3. 他在文件的末尾盖上了公司的印章。

   tā zài wén​jiàn de mò​wěi gài​shàng le gōng​sī de yìn​zhāng.

   He stamped the company's seal at the end of the document.

   Source: Dong Chinese Dictionary

4. 他在文件的末尾盖上了自己的印章。

   tā zài wén​jiàn de mò​wěi gài​shàng le zì​jǐ de yìn​zhāng.

   He stamped his seal at the end of the document.

   Source: Dong Chinese Dictionary

5. 他在信封的右上角盖上了一个当天的红色日期戳。

   tā zài xìn​fēng de yòu​shàng​jiǎo gài​shàng le yī gè dāng​tiān de hóng​sè rì​qī​chuō.

   He stamped a red date stamp of the day on the top right corner of the envelope.

   Source: Dong Chinese Dictionary