两盒牛奶英语说法为 "two cartons of milk"。
"carton" 来自法语 "carton"，意为纸盒或纸板盒。它指的是用纸板制成的盒子，常用于包装牛奶、鸡蛋、饮料等。
例句：
Can you please grab me two cartons of milk from the fridge? (你能拿两盒牛奶给我吗？)
I need to buy some groceries, including two cartons of milk. (我需要买些杂货，包括两盒牛奶。)
The store is out of stock for cartons of milk, do you have any other options? (商店的牛奶纸盒已经售完了，你们还有其他选择吗？)