✔ 最佳答案
We should try to unify different ideas.
The verb "try" can be transitive or intransitive when it means "make an attempt or effort to do something".
When testing the sentence with "try (what?/how?/when?/where?)", you may see "try what?" sounds more reasonable. Therefore, "to unify different ideas" is an infinitive phrase functioning as "noun" and it becomes the object of the verb "try".
The sentence structure of the sentence: S + V + O
(note: "different ideas" is the object of the infinitive "unify" in the infinitive phrase and the whole phrase is the object of the sentence)