后边加介词by，例如：
1、During the war their lands were occupied by the enemy.战争期间他们的土地被敌人占据了。
2、The hospital bed is no longer occupied by his wife他的妻子不在这张病床上了。
3、30 per cent of psychiatric hospital beds are occupied by people of no fixed abode.精神病院30%的床位是被无家可归者占据的。
