啃

gǒu bǎ gǔ tou kěn de hěn gān jìng

狗把骨头啃得很干净。

The dogs picked the bone clean.

lǎo shǔ bǎ yī xiē mù qì kěn huài le

老鼠把一些木器啃坏了。

The rats had gnawed away some of the woodwork.

tā yī kǒu kěn diào le dà bàn gè píng guǒ

他一口啃掉了大半个苹果。

He bit off more than half of the apple in one mouthful.

zhè shì nǐ kěn bù dòng

这事你啃不动。

You won't be able to get to grips with this.

zhè piān wén zhāng wǒ kěn le sì gè xiǎo shí cái nòng dǒng

这篇文章我啃了四个小时才弄懂。

I wrestled with this piece of writing for four hours before I grasped its content.

tā shì yī gè ài kěn shū běn de rén

他是一个爱啃书本的人。

He is a hard worker.