很全面，谢谢啦。。。。

Thank you very much!

thank you very much

好东西啊，谢谢啦

thank you very much

thank you very much

总结归纳的挺好，就是再配上练习就更好了

谢谢了
要是有配套练习就更好了

谢谢了，楼主辛苦了！

{:1_36:}