All-purpose robots are not,of course,a new vision.“It’s been

请教大神几个英语句子.
All-purpose robots are not a new idea."It's been 5 or 10 years from happening for about 50 years" says Eric.打引号的这句话,我怎么翻译都翻译不明白.
2,it is possible that it grew out of the discovery that some people did certain kinds of work better than others did them.这句话啥个意思呢?

请教大神几个英语句子.
1,all-purpose robots are not a new idea."it's been five or 10 years from happening for about 50 years." says eric.
这句话是个啥意思?five or 10 years?for about 50 years?他妈到底是多少年啊?我真*** 了.
2,being a public figure today ,however ,is a lot more difficult than it used to be .
这句话大概意思能懂,主要是这个a lot 在这个地方是个什么用法.
3,superstar cannot move about without worring about photographers with modern cameras.
这个句子啥意思?：超级明星们不能经常搬家 而不用担心那些有现代相机的摄影师?我怎么感觉翻译的怪怪的.



还有一个句子帮忙看看,这个是 途中我画线的句子.主要不明白这个principal 在这里是个啥意思?