馒头的英文：
steamed roll
steamed bun
steamed bread

参考例句：

Don't leave that steamed bread on the table, it will dry out
不要把馒头放在桌子上，它会干硬的。

We should also eat carbohydrates, the main fuel for our body, which we can get from bread, rice and noodles.
我们还应该摄入我们身体所需的主要养料—碳水化合物，我们可以从馒头、米饭和面条中得到它。

steamed是什么意思：
adj. 蒸（熟）的
v. steam的过去式和过去分词；蒸煮

Steam has fogged my glasses.
蒸气使我的眼镜模糊不清。

The boiler discharged steam.
锅炉排放了蒸汽。

The ship steamed into the harbor.
轮船驶抵港口。

roll是什么意思：
v. 滚动；转动；发出隆隆声；运转；行驶；起伏；卷，绕；辗
n. 滚动，打滚；卷，卷状物；名册

roll - on / roll - off ship
滚装船

The drums rolled.
鼓声隆隆。

Thunder rolled.
雷声隆隆。

bun是什么意思：
n. 小圆面包

I want a currant bun.
我想吃个掺有葡萄干的小圆面包。

Do you like to eat honey bun?
你想吃蜂蜜小面包么？

a round bun shaped to hold a hamburger patty.
可以装牛肉馅的圆形面包。