The secret to do.还是Secret to doing.

Question

如果他们都可以的话请问两者有什么区别

Answer 1

the secret to do 是错的。
The secret to N.(名词）
如：the secret to success. 成功的秘密
The secret to v-ing(动名词）
如：The secret to flying a plane 开飞机的秘密

Answer 2

doing.
理由：to是介词，所以后面跟动词的-ing形式：
the
secret
to
making
good
pastry
is
to
use
very
cold
water.和面的秘诀是用冷水。
望采纳，谢谢！