I happened to find not writing for almost four weeks. I have been absorbed in research these days. This May, I move to Europe and in August I first embargo on the UK. I've never been there. It is exciting to visit friends supporting me so much there in Europe and the UK. I will visit many universities and institutes. I welcome your invitation to come there and give talks. Thank you all! My research proceeds ahead in Hong Kong with my friend here. Hope getting together there with a bunch of new topics.