serve as a bridge

• 牵线搭桥

serve as a bridge的用法和样例：

例句

1. Dating agencies act as go-betweens for the unmarried.
   婚姻介绍所的工作就是为未婚男女牵线搭桥。
2. A warmhearted man acted as a go-between for him and introduced him to a girl.
   一个热心人牵线搭桥给他介绍了一位姑娘。