请高手翻译一下：从over the years
问题描述：
请高手翻译一下：从over the years
Many of the well-known kinds of lady beetles come from Asia or Europe. They now are common throughout the United States. American scientists imported one kind of lady beetle, the multicolored Asian lady beetle, as early as 1916. They released them as an attempt to control some kinds of inspects. Over the years, the beetle has become established, possibly helped by some that arrived with imported plants on ships.
答
是关于昆虫的科普短文：
翻译为：
许多种知名的瓢虫大多来自亚洲或欧洲.如今,它们已遍布于整个美国了.早在1916年,美国科学家就引进了一种亚洲彩色瓢虫.科学家放出这些瓢虫,企图借此抑制其它种类的昆虫.若干年来,很可能是随船引进的植物上本身也附带着的一些瓢虫,使它们更好地繁衍至今.