occur
vi.
1.发生
Earthquakes occur frequently in this area.
这一地区经常发生地震.
2.出现;存在;被发现[Q]
Do giraffes occur in Africa only?
长颈鹿是不是只在非洲才有?
3.被想起,被想到,浮现[(+to)]
It occurred to me to visit my teacher.
我想到要去看看我的老师.
It never occurred to me that he might be in trouble.
我怎么也没有想到他会遇上麻烦.
A brilliant idea occurred to me.
我想到一个极好的主意.
It didn't occur to him that she would refuse his invitation.
他没有想到她会拒绝他的邀请.