谷类食物麦片用英语叫做"grain cereal"或者"porridge"。麦片是由小麦或其他谷类作物经过磨碎、淬火、成型等工序制成的。例如，麦片可以通过将小麦磨成粉，然后加水和其他配料煮成。英文例句及其中文翻译如下：

I usually have a bowl of oatmeal for breakfast. (我通常早餐吃一碗燕麦片)
Whole grain cereals are a good source of fiber and vitamins. (全谷物麦片是纤维和维生素的很好来源)
My grandma used to make delicious porridge for us when we were kids. (我们小时候，奶奶经常为我们做美味的粥)