签合同时，请注意里面的条款。

Qiān hétóng shí, qǐng zhùyì lǐmiàn de tiáokuǎn.

When signing a contract, please pay attention to the terms inside.

这份合同有效期为三年。

Zhè fèn hétong yǒuxiàoqī wéi sān nián.

This contract is valid for three years.

根据合同规定，双方都有权利解除合同。

Gēnjù hétong guīdìng, shuāngfāng dōu yǒu quánlì jiěchú hétong.

According to the contract, both parties have the right to terminate the contract.