We are sugar, sweet to sorrow.

I don't know how old you are, but you should basically know the post-80s generation, right?

We are sugar, how sweet our life is. But why are teenagers in China unhappy?

Why do we have so much sadness?

Like, why love a person, when you are dying, you will be sad and distressed.

I don't think this needs to be understood at all.

It's just one meaning. Many sentences have nothing to express in particular.