n.[M][G]

1. 兵团，军
2. （医务、通讯、军械等兵种的）部队
   His father served in the medical corps during World War II.

   第二次大战时，他父亲在医务部队服役。

3. （经专门训练或有特种使命的）队，组，团
   the diplomatic corps

   外交使节团

n.

1. a main subdivision of an army in the field, consisting of two or more divisions.
   ▸a branch of an army assigned to particular work.
2. a group of people engaged in a particular activity:
   the press corps.