More to the point, though, it was because of their homesickness, of people in a foreign land, having tasted all the flavors there, being forced to adapt: Necessity is the mother of invention.
但說穿了，實在是因為一個人離開了自己家園，思鄉情切，再加上嘗遍了異鄉的酸甜苦辣滋味，逼得她們窮則變，變則通的結果。