Simone
所谓相对静止的概念，是in front of 好像在显示一幅画、一张照片，在描绘一刹那的相对位置状态，所以带来的感觉是“静止的”，也是与空间有关的。He is sitting in front of the window. There is a TV in front of the sofa. They are standing in front of us. in front of 与 ahead of 都可用指出一个队列的人或事物的前後关系，兆蠢即表液蠢示 before之族埋陪意。There were more than a hundred people ahead of us in the queue to get into the cinema. The man in front of me let me go first because I looked so ill.ahead of 除了用於指出空间的相对位置，也会用於时间上的差距。譬如，ahead of time, ahead of schedule 表示早了另外，ahead of 有行动方向和比拼的感觉，像是在看影片。They are walking ahead of us. 他们走在我们前面，也就是双方都向同一方向进发，只是他们走在我们前头。所以说它是比较动态的。相比这句:They are walking in front of us. 尽管他们在我们前面走，但我们却可以处於一个静止的状态，看见一群人在我们面前走过。
