In P. salicina, leaves with a green petiole were long ellipse and wedge-like at the base, with no hair on the surface and petiole.是什么意思_In P. salicina, leaves with a green petiole were long ellipse and wedge-like at the base, with no hair on the surface and petiole.在线翻译_英语_读音_用法_例句