名词 petal:

1. part of the perianth that is usually brightly colored

petaln.花瓣petaliten.透锂长石Petaluman.佩塔卢马(在美国；西经 122º39' 北纬 38º13')petalous有花瓣的petalodyn.[植]成花瓣形；花瓣化petalism投橄榄叶表决驱逐法petalagen.[总称](一朵花的)花瓣petalledadj.有花瓣的Petalonian.幅叶藻属(萱藻科)petalless无瓣的petallikeadj.似花瓣的

1. Flowers expanded their petals in the sunshine.
   花瓣在阳光下绽开。