The last one can be the best,

but w/o the first 9, I will not have chance to take the last one. I get trained by the US, at the same time I also contributed a lot the US. Too bad I had not chance to pay back for my first 9 cakes.

从美国这里学来，应有感恩之心. That is SO RIGHT! That is exactly why I think I will need to educate the US people to learn good things from China!