Simone
... 的答案(线索、办法)
the key to doing sth
做什么什么的关键，是介词，to词性不会发生变化的，只有用法上的区别
例句
1、Reading is the key to the treasure house of ideas.
顶( 5 )
读书是打开知识宝库的钥匙。
2
The key to the whole affair was his jealousy.
顶( 2 )
整个事情的症结是因为他忌妒。
3
Do you know the key to the problem?
顶( 1 )
你知道这道题的答案吗？
4
The key to this question lies in overcoming Han chauvinism.
顶( 1 )
解决这个问题的关键是克服大汉族主义。
5
Knowledge is a treasure, but practice is the key to it.
顶( 0 )
[谚]知识是宝库，实践是钥匙。
6
Herein lies the keys to the questions.
顶( 0 )
里面包含着问题的答案。
7
Allocation is the key to achieving your goals.
顶( 0 )
资产配置是实现你的目标的关键。
8
This was the key to success of our initial talks.
顶( 0 )
这就是我们当初会谈取得成功的关键所在。
9
The key to objectivity is to accept subjectivity.
顶( 0 )
客观的关键是接受主观的看法。
10
Appreciation is the key to happiness.
顶( 0 )
幸福的第一个秘诀是感激。
