7 sentences

1. 代表团已于昨日平安抵京。

   dài​biǎo​tuán yǐ yú zuó​rì píng'ān dǐ Jīng.

   The delegation arrived safely in Beijing yesterday.

   Source: Dong Chinese Dictionary

2. 昨日之事不可追。

   zuó​rì zhī shì bù kě zhuī.

   What happened yesterday cannot be undone.

   Source: Dong Chinese Dictionary

3. 该市昨日新增了五例确诊病例。

   gāi shì zuó​rì xīn​zēng le wǔ lì què​zhěn bìng​lì.

   The city reported five new confirmed cases yesterday.

   Source: Dong Chinese Dictionary

4. 代表团成员已于昨日先期到达。

   dài​biǎo​tuán chéng​yuán yǐ yú zuó​rì xiān​qī dào​dá.

   Members of the delegation arrived in advance yesterday.

   Source: Dong Chinese Dictionary

5. 新建的高速铁路已于昨日全线接轨。

   xīn​jiàn de gāo​sù tiě​lù yǐ yú zuó​rì quán xiàn jiē​guǐ.

   Track-laying for the entire new high-speed railway was completed yesterday.

   Source: Dong Chinese Dictionary

6. 这位伟大的科学家于昨日因病逝世。

   zhè wèi wěi​dà de kē​xué​jiā yú zuó​rì yīn bìng shì​shì.

   The great scientist passed away yesterday due to illness.

   Source: Dong Chinese Dictionary

7. 新华社昨日发布了关于经济增长的重要新闻。

   xīn Huá shè zuó​rì fā​bù le guān​yú jīng​jì zēng​zhǎng de zhòng​yào xīn​wén.

   Xinhua News Agency released important news regarding economic growth yesterday.

   Source: Dong Chinese Dictionary