n.苞，苞片，托叶

The flower head of a daisy is surrounded by green bracts.
这朵雏菊的花序周围是绿色的苞片。
The plant's bright red bracts attract pollinators.
植物鲜艳的红色苞片吸引传粉者。
Bracts often have different colors than the flowers they surround.
苞片的颜色常常与它们包围的花朵不同。
The Christmas plant has showy, red bracts that resemble flowers.
圣诞植物有类似花朵的华丽红苞片。
The pinecone structure is made up of numerous overlapping bracts.
松果结构由许多重叠的苞片组成。
Remove any dead or yellowing bracts from the plant to promote healthy growth.
为了促进植物健康生长，移除任何枯死或变黄的苞片。
The colorful bracts of this tropical plant serve as an important food source for birds.
这种热带植物色彩斑斓的苞片是鸟类的重要食物来源。
The bracts on the underside of the palm fronds provide shelter for small insects.
棕榈叶下面的苞片为小昆虫提供了庇护所。
The bracts of some plants can be used in herbal medicine to treat various ailments.
一些植物的苞片可以用作草药来治疗各种疾病。
The artist painted a vibrant still life featuring a bouquet with delicate bracts.
艺术家画了一幅生动的静物画，其中有一束带有精致苞片的花束。