a collection of resources[同] inventory, armory, armouryhe dipped into his intellectual armory to find an answerall the weapons and equipment that a country has[同] armory, armoury, arsenal
arsenal起初只是指制造或存放军火的地方，现在用来表示“武器”时更多的指核武器。armoury的意思是制造及维修武器的地方，在美国指兵工厂。 阁下或许可从两个词的英文此条解释里找到彼此的区别：arsenal：government depot where arms are made and storedarmoury：place where weapons are made and serviced;(US) place where weapons are manufactured.
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