1.N-COUNT 可数名词 营；军营 A battalion is a large group of soldiers that consists of three or more companies.

Anthony was ordered to return to his battalion...安东尼受命返回自己的军营。

He joined the second battalion of the Grenadier Guards.他加入了英国近卫步兵第一团第二营。

2.N-COUNT 可数名词 （尤指有组织、有特定任务、高效的）一大群，一大批 A battalion of people is a large group of them, especially a well-organized, efficient group that has a particular task to do.

【搭配模式】：N of n

There were battalions of highly paid publicists to see that such news didn't make the press.有一大批拿高薪的公关人员可以确保这样的新闻不会见诸报端。