类似的短语还有：
the key to the door 门钥匙； the answer to the question 问题的答案
a secretary to the managing director 总经理的秘书
the words to a tune 一致的言语
the entrance to the park 通向公园的入口
the way to my home通向我家的路
the only access to that building 到那栋楼的唯一通路
类似的短语还有：
the key to the door 门钥匙； the answer to the question 问题的答案
a secretary to the managing director 总经理的秘书
the words to a tune 一致的言语
the entrance to the park 通向公园的入口
the way to my home通向我家的路
the only access to that building 到那栋楼的唯一通路