occupy  
verb [ T ] uk/ˈɒk.jə.paɪ/ us/ˈɑː.kjə.paɪ/
  (FILL)         
 B2 占有,占用,占据(空间或时间)
to fill, exist in, or use a place or period of time
  The rest of the time was occupied with writing a report. 剩下的时间用来写了份报告。 
 The house hasn't been occupied (= lived in) by anyone for a few months. 这幢房子已经有几个月没人住了。 
formal A large picture of the battle of Waterloo occupied the space above the fireplace. 一幅描绘滑铁卢战役的巨幅画作占据了壁炉上方的空间。 
 B2 使(某人)忙于;使(某人)感兴趣
to keep someone busy or interested
  On long journeys I occupy myself with solving maths puzzles. 长途旅行时,我用解数学难题来打发时间。 
 - More examples
- The programme will occupy that half-hour slot before the nine o'clock news.
- All physical objects occupy space.
- Historically, issues of this kind have not occupied the foreground of political debate.
- He occupies a prominent position in the rogues' gallery of the financial world.
- The house occupies a commanding position at the top of the valley.
  (TAKE CONTROL)      
C1 (军队或一伙人)占领,占据
(of an army or group of people) to move into and take control and/or possession of a place
  Troops quickly occupied the city. 军队很快占领了城市。 
 Protesting students occupied the university office for two weeks. 抗议的学生占领大学办公楼达两个星期。 
 the occupying forces 占领军