Perigonium
雄器苞, 围生殖囊; 花被
🗣️ 情景例句
I have approximately three-year experience using a computer.
我有大约三年操作电脑的经验。
He had visions of success and fame.
他梦想功成名就。
who rolled balls down inclined planes,
他就是那个使球体沿斜面向下滚动，