Business traveller from Thailand to Shenzhen

Am going there for business and am finding a hotel near the exhibition hall / convention center. Any recommended ? By walking distance will be great. Also how to get to that area (the hotel recommended )by train or MRT from the airport? I will be arriving there very late like midnight and this will be my first time traveling by myself.

P.s. I cant speak mandarin so, any words i should know or memorize.