barn /bɑːn/ CET4 TEM4

• 1. 

  N-COUNT A barn is a building on a farm in which animals, animal food, or crops can be kept. 谷仓; 牲口房

• 2. 

  N-COUNT any large building, esp an unattractive one 大仓棚

• 3. 

  N-COUNT a unit of nuclear cross section equal to 10– 28 square metre 靶; 核反应截面单位 ( symbol: b)