表示地点时可以互换。如：This is the table where/at which my family have meals everyday.这就是我们一家人天天吃饭的桌子。The house where/in which I wrote my article lies on the hill.这座房子座落在山腰，我在这座房子里写了我的文章。如果不是表示地点，一般不能互换。如：The little creature in which scientists are interested is known as ET.这里"be interested in"是固定词组。...
