前边用介词at，例如：
1、The company was clearly at a crossroads.该公司显然处于发展的关键时刻。
2、He came to a halt at a crossroads fifty yards further on.他在往前50码远的十字路口停了下来。
3、Mrs Glick reined in the horse and stopped at the crossroads.格利克夫人勒住缰绳在十字路口停了下来。
4、Take the right fork at the crossroads.到十字路口走右边的岔道。
