地面部队的英文：
ground forces; surface forces; ground troops; land troops

参考例句：

The enemy supported ground troops with gunships.
敌军以武装直升飞机支援地面部队

The president said he had no intention of deploying ground troops.
总统称并不打算部署地面部队。

Marshal Montgomery commanded the ground forces in the invasion of Normandy.
蒙哥马利元帅在诺曼底登陆中指挥地面部队。

Anybody who commits the land power of the United States on the continent of Asia ought to have his head examined.
如果有人使美国的地面部队陷入到亚洲大陆中去，那他的头脑一定出了问题。

In Libya, that means strikes on Colonel Muammar Qaddafi's ground forces if they start to shell towns.
对于利比亚，这意味着如果穆阿迈尔·卡扎菲的地面部队开始炮轰城镇，他们将会受到军事打击。

ground是什么意思：
n. 地面，土地
v. 着陆， 打基础
adj. 磨平的，磨碎的

on solid ground
在稳固的基础上

Their ship was grounded.
他们的船搁浅了。

The ground has thawed.
地面解冻了。

forces是什么意思：
n. 军队，暴力
v. 强迫，用力推动

by (main) force
用蛮力, 全靠气力; 以最大的力气

The force is spectacular!
这个瀑布很壮观！

resultant force
合力

surface是什么意思：
n. 表面；表层；面；顶面；操作台
v. 升到水面；露面；醒来；铺设

impress a mark on [ upon ] a surface=impress a surface with a mark
在表面上打记号

He finally surfaced at midday.
他终于在中午时醒过来了。

The towers are surfaced with steel plates.
在塔面上加了一层钢板。