What is best way to get from JW Marriott Beijing to Cruise Ship Terminal Tianjin for Regent line?

Is your hotel located at No.83, Jianguo Road, Chaoyang District?
If yes, from your hotel, walk west for around 0.6 mile to get to Dawang Road Metro Station first. Take subway line 14 from there to South Railway Station. Then you can take high-speed train to get to TJ Main Railway Station. After arriving, take subway line 9 to Citizen Square Station. Transfer to bus no.513 to the cruise terminal directly.