我的家里积累了很多杂物。

Wǒde jiālǐ jīlěi le hěn duō záwù.

I accumulated a lot of junk in my home.

我在工作上积累了丰富的经验。

Wǒ zài gōngzuò shàng jīlěi le fēngfù de jīngyàn.

I have accumulated a wealth of experience at work.

我吃太多了，身体里积累了大量脂肪。

Wǒ chī tài duō le, shēntǐ lǐ jīlěi le dàliàng zhīfáng.

I ate too much and accumulated a lot of fat in my body.