英语翻译把这句话翻译成英文,当你微笑的时候（你）是最美丽的.可不可以把”当你微笑的时候“这句话放在句首写给我？

When you smile,you are the most beautiful.
The moment you smile,you're the most beautiful.
不过按英语习惯,还是把when放后面比较地道的呢.

You are the most beautiful while smiling

可以

Your smile makes you pretty.

You are the best beautiful when you smile

You are the most beautiful when you smile.

You are the most beautiful while smiling。

When you're smiling , there is nothing else in my eyes.

you are so beautiful when you smile

While miling ，you are the most beautiful one in the world！

Your smile is the most beautiful

The best beauty lies in your smile.