3 sentences

1. 美元与欧元的比价最近波动很大。

   měi​yuán yǔ ōu​yuán de bǐ​jià zuì​jìn bō​dòng hěn dà.

   The exchange rate between the US dollar and the Euro has fluctuated greatly recently.

   Source: Dong Chinese Dictionary

2. 买大件家电前，最好先在网上比价。

   mǎi dà jiàn jiā​diàn qián, zuì hǎo xiān zài wǎng​shàng bǐ​jià.

   Before buying major appliances, it is best to compare prices online.

   Source: Dong Chinese Dictionary

3. 政府努力维持合理的工农业产品比价。

   zhèng​fǔ nǔ​lì wéi​chí hé​lǐ de gōng​nóng​yè chǎn​pǐn bǐ​jià.

   The government is working to maintain a reasonable price ratio between industrial and agricultural products.

   Source: Dong Chinese Dictionary