engage/ ɪn'geɪʤ /

1.vt.[+attention] [ interest] 
吸引

2.vt.[+consultant] [ lawyer] [ sb's services] 
(employ) 雇用

3.vt.[Auto] [+clutch] 
接合

4.vt.[军] [+enemy] 
与…交战

5.vi.[术语] 
啮合

to engage in
 [+commerce,research etc] 从事于
to engage sb in conversation
使某人参加谈话