老房子上仍然保留着历史的痕迹。

Lǎo fángzi shàng réngrán bǎoliúzhe lìshǐ de hénjì.

The old house still retains traces of history.

这个古老的城市充满了历史的痕迹。

Zhège gǔlǎo de chéngshì chōngmǎnle lìshǐ de hénjì.

This ancient city is full of historical traces.

犯罪现场保留了重要的痕迹。

Fànzuì xiànchǎng bǎoliúle zhòngyào de hénjì.

Important traces were preserved at the crime scene.