关于concern的几个问题

关于concern的几个问题
1.As far as I am concerned,they have no way to achieve the dream.
Q：请翻译一下,主要是前半句话.
2.①她一生都从事照料穷人的工作
She has been concerned in caring for the poor.
②你最好不要介入这种事.
You'd better not concern yourself in such things.
或You'd better not get concerned in such things.
Q：这两句中be/get concerned in的用法和意义分别是.