牛肉 (niúròu) is a noun meaning "beef," literally "cow meat." Like other meat words in Chinese, it follows the pattern of animal + 肉. It is commonly seen in menus and food discussions, such as 牛肉面 (beef noodles).
我想要一碗牛肉面,不加辣。
wǒ xiǎng yào yī wǎn niúròu miàn, bù jiā là.
I'd like a bowl of beef noodles, not spicy.
这家餐厅的牛肉做得特别嫩。
zhè jiā cāntīng de niúròu zuò de tèbié nèn.
The beef at this restaurant is cooked especially tender.
牛肉的价格比猪肉贵不少。
niúròu de jiàgé bǐ zhūròu guì bùshǎo.
The price of beef is quite a bit more expensive than pork.