The interviewer is very professional. Firstly introduce HUAWEI products and what they are doing. Then ask me questions about my projects and related requirements. He wants a PhD student would better to help them publish a paper by the end of the intern. I think it doesn't fit my situation. They focus on the deep data structure of databases, rather than applications. I think they prefer good data structure and algorithm knowledge, which I didn't prepare well. It's a very good opportunities anyway.