5 sentences

1. 中华民国成立于1912年。

   Zhōng​huá Mín​guó chéng​lì yú 1912​nián.

   The Republic of China was founded in 1912.

   Source: Dong Chinese Dictionary

2. 奶奶手里还留着几枚民国时期的大头。

   nǎi​nai shǒu lǐ hái liú zhe jǐ méi Mín​guó shí​qī de dà​tóu.

   Grandma still has a few 'Yuan Shikai dollars' from the Republican era.

   Source: Dong Chinese Dictionary

3. 民国时期的北京充满了浓厚的文化气息。

   Mín​guó shí​qī de Běi​jīng chōng​mǎn le nóng​hòu de wén​huà qì​xī.

   Beijing during the Republican era was full of a strong cultural atmosphere.

   Source: Dong Chinese Dictionary

4. 在一些反映民国时期的小说里，巡警的身影经常出现。

   zài yī​xiē fǎn​yìng Mín​guó shí​qī de xiǎo​shuō lǐ, xún​jǐng de shēn​yǐng jīng​cháng chū​xiàn.

   Patrolmen often appear in novels set during the Republic of China period.

   Source: Dong Chinese Dictionary

5. 台湾的官方文件上通常写着民国纪年。

   Tái​wān de guān​fāng wén​jiàn shàng tōng​cháng xiě zhe Mín​guó jì​nián.

   Official documents in Taiwan usually use the Minguo era calendar.

   Source: Dong Chinese Dictionary