3 sentences

1. 别忘了报名参加环境展会。

   bié wàng le bào​míng cān​jiā huán​jìng zhǎn​huì.

   Don't forget to sign up for the environmental fair.

   Source: OpenSubtitles

2. 我去年去那里参加过一个展会。

   wǒ qù​nián qù nà​li cān​jiā guo yī gè zhǎn​huì.

   I was there last year for an exhibition.

   Source: OpenSubtitles

3. 这个展会是国际先进科技产品的总汇。

   zhè​gè zhǎn​huì shì guó​jì xiān​jìn kē​jì chǎn​pǐn de zǒng huì.

   This exhibition is a confluence of advanced international technological products.

   Source: Dong Chinese Dictionary