noun 下载 🔗分享 萼片 One of the component parts of the calyx, particularly when the sepals in a plant's calyx are not fused into a single structure. Examples : "The rosebud showed five green sepals protecting the tightly furled petals inside. " 玫瑰花苞露出了五片绿色的萼片,保护着里面紧紧卷曲的花瓣。 plant nature part biology structure 与AI对话词汇游戏阅读练习