n. a flask for carrying water; used by soldiers or travelers
n. sells food and personal items to personnel at an institution or school or camp etc.
n. a restaurant outside; often for soldiers or policemen
n. 小卖部( canteen的复数形式 ); 食堂; （士兵、旅游者等用的）水壶; （装有一套刀、叉和勺的）餐具盒