可以在句首也可以在句末
例：
At the beginning of liberation,the factory was an awful mess.
解放初,这个工厂是个烂摊子.
They have added a new scene at the beginning.
在开头他们又增加了一场戏.
可以在句首也可以在句末
例：
At the beginning of liberation,the factory was an awful mess.
解放初,这个工厂是个烂摊子.
They have added a new scene at the beginning.
在开头他们又增加了一场戏.