I bent over to pick up my pen which had fallen on the floor.
我俯身撿起了掉在地上的筆。
A big tree has fallen in the storm.
一棵大树在风暴中倒下了。
A fallen tree obstructed the road.
有棵樹倒了下來,把路堵住了。
Now Marina was a romantic, she had not yet fallen into that passive state of mind which accepts that one should find a corner to live, anywhere, and then arrange one's whole life around it.