4 sentences

1. 汉代常以缇骑作为皇帝的侍卫。

   Hàn​dài cháng yǐ tí jì zuò​wéi huáng​dì de shì​wèi.

   In the Han Dynasty, red-clad guards often served as the emperor's bodyguards.

   Source: Dong Chinese Dictionary

2. 考古学家正在发掘一座汉代古墓。

   kǎo​gǔ​xué​jiā zhèng​zài fā​jué yī zuò Hàn​dài gǔ mù.

   Archaeologists are excavating a tomb from the Han Dynasty.

   Source: Dong Chinese Dictionary

3. 汉代的一盆约相当于现代的一百二十八升左右。

   Hàn​dài de yī pén yuē xiāng​dāng​yú xiàn​dài de yī​bǎi'èr​shí​bā shēng zuǒ​yòu.

   One 'pen' from the Han Dynasty is equivalent to approximately 128 liters today.

   Source: Dong Chinese Dictionary

4. 汉代出土的文物非常有价值，对历史研究意义重大。

   Hàn​dài chū​tǔ de wén​wù fēi​cháng yǒu jià​zhí, duì lì​shǐ yán​jiū yì​yì zhòng​dà.

   The cultural relics unearthed from the Han Dynasty are highly valuable and hold great significance for historical research.

   Source: Dong Chinese Dictionary