柯林斯词典calyx /ˈkeɪlɪks, ˈkælɪks/ 1. N the sepals of a flower collectively, forming the outer floral envelope that protects the developing flower bud 花萼→compare corolla 返回 calyx剑桥词典the outer part of a flower formed by the sepals (= the separate outer parts ), which covers and protects the petals , etc. as they develop 花萼（位于花的外侧，有若干萼片组成，开花时起到保护花瓣的作用） 返回 calyx