莉莉:
Wow! You are much skinnier since the last time I saw you.


噢.你比上次见面苗条多了.
露西:
I have lost about five kilos.


我减了十斤.
莉莉:
How do you do it?


你怎么做到的?
露西:
I am on a diet and exercise everyday.


我节食并且每天运动.
莉莉:
What's the secret?


有什么秘诀吗?
露西:
The secret is constancy of purpose.


秘诀就是坚持不懈.


