Noun + 的 + 长度
长度 (chángdù) means 'length' as a measurement term. It combines 长 (long) with the suffix 度 (degree, measure). It is used in descriptions of physical dimensions, such as 猫的长度 meaning 'the length of a cat.'
这条河的长度超过了一千公里。
Zhè tiáo hé de chángdù chāoguò le yī qiān gōnglǐ.
The length of this river exceeds one thousand kilometers.
请量一下这张桌子的长度。
Qǐng liáng yíxià zhè zhāng zhuōzi de chángdù.
Please measure the length of this table.
这篇文章的长度刚好合适,不长也不短。
Zhè piān wénzhāng de chángdù gānghǎo héshì, bù cháng yě bù duǎn.
The length of this article is just right—not too long and not too short.