萼片

例句：

1. 1. The flower's petals are delicate and colorful.
   这朵花的花瓣很娇嫩且色彩斑斓。
2. 2. The plant has five petals that grow in a spiral pattern.
   这种植物有五个花瓣，呈螺旋状生长。
3. 3. The butterfly's wings have three pairs of petals, each with a unique shape.
   这只蝴蝶的翅膀有三对，每对都有独特的形状。