see a pin and pick it up有什么特殊含义吗?

see a pin and pick it up有什么特殊含义吗? See a pin and pick it up, all the day you have good luck.这句话 这是剑桥英语里的一首歌谣,整首歌谣如下See a pin and pick it up,At the day you'l pick up it和pick it 有什么区别? 请问 pick it up 和 pick up it 有什么区别? pick it up什么意思 pick it up 和 pick up the book 有什么区别 有pick up it 这么用的吗?与pick it up怎么区别? 英语翻译pick up和pick-up有什么区别?意思各是什么?How to be a pick-up artist?这 pick 和 pick up有什么区别 pick you up 和pick up you有什么区别? Get a and pick up the cubans