为了争第一名，他每天都练习到很晚。

Wèile zhēng dì yī míng, tā měitiān dōu liànxí dào hěn wǎn.

In order to fight for first place, he practices until very late every day.

他们都想当队长，所以一直在争。

Tāmen dōu xiǎng dāng duìzhǎng, suǒyǐ yìzhí zài zhēng.

They all want to be the team leader, so they keep arguing.

两个孩子在争玩具。

Liǎng gè háizi zài zhēng wánjù.

The two children are fighting over a toy.