新旧城区的建筑风格形成了强烈的对比。

xīn jiù chéng qū de jiàn zhù fēng gé xíng chéng le qiáng liè de duì bǐ.

The architectural styles of the old and new districts form a strong contrast.

把这两张照片放在一起对比，你就能看出区别了。

bǎ zhè liǎng zhāng zhào piàn fàng zài yī qǐ duì bǐ, nǐ jiù néng kàn chū qū bié le.

Put these two photos together and compare them, and you'll see the difference.

他的成绩和去年相比有了明显的对比。

tā de chéng jì hé qù nián xiāng bǐ yǒu le míng xiǎn de duì bǐ.

His grades show a noticeable contrast compared to last year.