小时候的照片我到现在还留着。

Xiǎoshíhou de zhàopiàn wǒ dào xiànzài hái liúzhe.

I still keep photos from when I was little.

这玩具那么旧，为什么你还留着？

Zhè wánjù nàme jiù, wèishénme nǐ hái liúzhe?

This toy is so old, why do you still keep it?

他决定留在北京工作。

Tā juédìng liú zài Běijīng gōngzuò.

He decided to stay in Beijing to work.