Finally, T-O-O the adverb means either there's an over abundance, there's too much, or in addition, my sister wanted pizza too.
最后,副词 T-O-O 表示要么有太多,要么太多,要么另外,我姐姐也想要披萨。
可汗学院公开课:英语语法
Right, so when we're talking about the number of things, you wanna use T-W-O. And finally we have T-O-O, too, which is an adverb and they can either mean an over abundance of something or also.