John plays football as well as, if not better than David.

约翰的足球即使没有戴维踢得好，也跟他踢得一样好。

It has got to be as good if not better than those their friends have hosted recently.

它必须是一样好，如果不优于他们的朋友主办最近。

Keep on practising, and you will play the piano as well as, if not better than, Lang Lang.

只要你不停的练习，你的钢琴水平即使不比朗朗高也差不到哪去。