3N-COUNT [usually singular](方法、资源等的)宝库;(储藏工具的)仓库 You can use arsenal to refer to a large number of tools, methods, or resources that someone has available to help them achieve what they want to do. (方法、资源等的)宝库;(储藏工具的)仓库
Managers use a full arsenal of motivational techniques to get employees to take risks.
管理者运用各种激励措施使雇员勇于冒险。
He has more punches in his arsenal than other boxers.