go in for
... go for去拿,去请,支持,拥护,对。。。感兴趣 go in for从事于,酷爱,追求 go into进入,投入,调查 ...
be concerned with
... as concerns 关于 be concerned with 关心,挂念;从事于 count on 依靠;期待,指望 ...
engage ; engaged in ; employ oneself in ; enforce sth. on / upon sb
work on ; work on a problem
work hard at