一大块肉用英语怎么说？

一大块肉

...a chunk of meat...

chunk

n. 厚厚的一块，（某物）相当大的数量或部分，强壮、结实的马；

例句
The manager of a company does not like having a large chunk of his wealth bound up in its shares...
一家公司经理不愿意让大笔财富套在股票里。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

meat

n. 肉，食物，实质；adj. 重要的，基本的；

例句
The six food groups include grain products, vegetables, fruits, milk and milk products, meats and meat alternates, and a miscellaneous group.
这6类食物包括谷类产品、蔬菜、水果、牛奶和奶制品、肉类和肉类替代品以及杂类食品。