中文里最难快速朗读的话

中文里最难快速朗读的话：
The most difficult for you to read:

"niú lā niǎn zi zhá niú liào""牛 拉 碾 子 轧 牛 料 " ---- 出自某楼盘广告

Cow makes its own food by working on the roller．——extracted from an advertisement words.