3 sentences

1. 他往家里汇了一笔钱。

   tā wǎng jiā lǐ huì le yī bǐ qián.

   He remitted a sum of money home.

   Source: Dong Chinese Dictionary

2. 办理结汇时请携带个人身份证件。

   bàn​lǐ jié huì shí qǐng xié​dài gè​rén shēn​fèn zhèng​jiàn.

   Please bring your personal ID when processing foreign exchange settlement.

   Source: Dong Chinese Dictionary

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