1. Everyone knows that if he shouts in the vicinity of a wall or a mountainside, an echo will come back.
    大家都知道，在墙壁或山腰附近发出的喊声，就会听到回声。

2. We had spent several days in a small town and visited a number of old churches in the vicinity.
    我们在一座小镇上逗留了几天，参观了附近的许多古老的教堂。

3. There is no high school in the vicinity.
    附近没有中学。