3 sentences

1. 本次会议非常重要。

   běn​cì huì​yì fēi​cháng zhòng​yào.

   This meeting is very important.

   Source: Dong Chinese Dictionary

2. 这家科技公司是本次体育赛事的主要赞助商。

   zhè jiā kē​jì gōng​sī shì běn​cì tǐ​yù sài​shì de zhǔ​yào zàn​zhù​shāng.

   This tech company is the main sponsor of this sporting event.

   Source: Dong Chinese Dictionary

3. 新款智能折叠手机在本次科技博览会上首次亮相。

   xīn​kuǎn zhì​néng zhé​dié shǒu​jī zài běn​cì kē​jì bó​lǎn​huì shàng shǒu​cì liàng​xiàng.

   The new smart folding phone made its debut at this technology expo.

   Source: Dong Chinese Dictionary