I like it的意思是：我喜欢的意思。
例文如下：
A person who dews not deliberately dimples of all his thoughts alike in cumbrous draperies and flimsy disguises may strike out twenty varieties of familiar everyday language, each coming somewhat nearer to the feeling he wants to convey, and at last not hit upon that particular and only one which may be said to be identical with the exact impression in his mind. This would seem to show that Mr. Cobalt is hardly right in saying that the first word that occurs is always the best. It may be suggested naturally, however, and spontaneously, from a fresh and lively conception of the subject.
it是代词，所谓代词， 是用来代替刚刚说到的一样东西，或者一件事。那么刚刚谈了什么，只有你知道。