今日小常识In English we talk about a 'bunch of keys', meaning a group of keys which are attached together. The group noun 'bunch' is also used for things like bananas and flowers when they are fastened together in a tight group.
A bunch of keys 意思是一串钥匙。Bunch 是个集合名词表示一串、一束、一捆或一簇什么东西,比如一串香蕉 a bunch of bananas, 一束鲜花 a bunch of flowers 等等。