defence是可數名詞嗎

　　Defence soaks up 40 percent of the budget.

　　國防開支要耗費40%的預算。

　　The Irish team were solid as a rock in defence.

　　愛爾蘭隊的防守堅如盤石。

　　She put up a spirited defence in the final game.

　　她在最后一場比賽中進行了頑強的防守。