reason is

• 的后面

reason is的用法和样例：

例句

1. Behind the door there is a broom.
   门的后面有一把扫帚。
2. One followed by two ciphers is 100.
   一的后面跟两个零是一百。
3. A smile is the chosen vehicle for all ambiguities.
   微笑是人们常用来表达模棱两可的方式。