noun 下载 🔗分享 花冠, 花瓣。 An outermost-but-one whorl of a flower, composed of petals, when it is not the same in appearance as the outermost whorl (the calyx); it usually comprises the petal, which may be fused. Examples : "The vibrant red corollas of the poppies stood out against the green field, their petals clearly distinct from the surrounding sepals. " 田野里,鲜红的罂粟花花冠格外醒目,它们的花瓣与周围的萼片明显不同。 biology plant nature part organism 与AI对话词汇游戏阅读练习