这句话有语法或者用词上的错误吗?帮我看看
If you can feel how deep I love you someday,you'll understand why should we must only be strangers.
如果有一天你能知道到我有多爱你,你就能明白为什么我们彼此这么陌生...
If you can feel how deep I love you someday,you'll understand why we must only be strangers.
改成这样如何