1, it formal object: I like it as a formal subject, often used as a formal object, and the object clause is placed at the end of the sentence, especially in sentences with compound objects.

When such is is at the beginning of a sentence, the subject and predicate are completely reversed.

3.as plays a connecting role, expressing the speaker's point of view and pointing out the basis or source of the main sentence, meaning "just like, just like".

4. Object clause: placed after the preposition as the object of the preposition.

Compared with anyone, the former means "those people" and the latter means "anyone". The difference is that "who" is a plural concept, "those people", and the predicate verb behind it should be plural; And anyone who means anyone, followed by a singular predicate verb.