Joke Collection Website - Bulletin headlines - Divide the grammatical structure of English sentences. Especially to answer.

Divide the grammatical structure of English sentences. Especially to answer.

That question is the subject is the copulative verb diffcult, the predication to answer is the complement-this analysis is unreasonable

It should be: That question is the subject diffcult, the slogan to answer is the post-attribute (infinitive as an attribute)

It means that this question is difficult to answer.