名词
中文翻译：花萼
同义词：
['calyx', 'bracteoles']
例句：
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1. The plant has a unique structure with bracts that protect the flower.
这种植物具有独特的结构，带有保护花朵的萼片。
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2. The bracts are used to protect the fruit from insects and other pests.
萼片用于保护果实免受昆虫和其他害虫的侵害。
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3. The bracts of this flower are used in traditional medicine for their medicinal properties.
这种花的萼片在传统医学中被用于提取药用成分。