树龄

yuàn zhōng yǒu jǐ zhū liǎng bǎi nián yǐ shàng shù líng de gǔ shù

院中有几株两百年以上树龄的古树。

There are several trees over 200 years old in the courtyard.

zhè kē shù gū jì yǒu nián shù líng

这棵树估计有700年树龄。

The tree is estimated to be 700 years old.