平原的英文：
field
plain

参考例句：

Here, running from north to south are the Northeast Plain, the North China Plain and the Middle-lower Yangtze Plain.
这一级上从南到北分布着东北平原、华北平原、长江中下游平原。

The little mountain stream is dashing down to the plain.
小山涧奔流而下，流向平原。

The plains were overrun by Tartar hordes.
这些平原上散布着鞑靼人的游牧部落.

Not a single tree relieved the flatness of the plain.
平原上单调得毫无变化,连一棵树都没有.

Long low ridges which rise above the marsh form the only inhabitable areas on the plain.
隆起在沼泽上的一系列又长又矮的山脊，是平原上唯一可以栖住的地方。

Our chains are forged!Their clanking may be heard on the plains of Boston!
我们的枷锁已经铸成，琅珰的镣铐声在波士顿的平原上也可清晰听闻！

We worried that the heavy rain across the prairie would soon bog our car.
我们担心平原上的大雨将很快使我们的汽车陷入淤泥。

The hills seem to thrust straight out of the open plain, some in clusters, some in solitary loftiness.
山峦似乎从平原拔起，有的群峰簇拥，有的孤峰矗立。

The hills seem to thrust straight out of the open plain, some in clusters, some in solitary loftiness
山峦似乎从平原拔起，有的群峰簇拥，有的孤峰矗立。

Night was falling, the plain was cold and vague, great banks of violet haze were rising in the gleam of the twilight.
天黑了，平原一片苍凉，紫色的浓雾正在黄昏的微光中腾起。

field是什么意思：
n. 原野，田地；运动场；领域，专业；实地，野外
adj. 实地的，野外的，野战的；野生的；田间的
v. 接球；巧妙回答

A rectangular field is to be subdivided into eight equal fields to sell.
这块矩形的土地被划分成八等分再出售。

Scatter seeds on the fields/scatter the fields with seeds
在田里播种[把种子撒在田地里]

They leveled a field yesterday.
他们昨天平整场地了。

The smoke billowed over the field.
烟波涛般滚滚向前越过原野。

A charge or device on a field.
徽章底色上的图案标记

plain是什么意思：
adj. 清晰的；朴素的；普通的；坦率的；简易的；不带头衔的；名副其实的
adv. 清楚地；完全地
n. 平原；朴实无华的东西

plain stupidity
十足的笨蛋

This is plain on the face of the facts.
这一点，从事实的表面就可以清楚地看出来。

the diamond was in a plain gold mount.
这个钻石嵌在一个金底板上。

There is a dead house in the plain alone.
平原上有一所孤零零的无人居住的房子。

The cereal is packaged in plain boxes.
谷类食品用简单的盒子包装。