troop

n.[C]

1. 军队，部队[P]
   The enemy troops withdrew.

   敌军撤退了。

2. 骑兵队[G]
3. 一群；大量，许多[（+of）]
   The old man was surrounded by a troop of children.

   老人被一群孩子围住了。

   A troop of children rushed in and chased each other noisily.

   一群小孩冲进来，喧闹地彼此追逐。

4. 一队的童子军[G]