"On my hosting has 2 nameservers, which mean I have two IP address to point to my hosting server. But in the domain control panel, there is only one place to put IP Address."
You might be looking in the wrong place on the control panel.
If your webhost provides you the two nameservers (something like ns1.yourwebhost.net, ns2.yourwebhost.net) you need to go to the name server settings for your registered domain
"Hosting elsewhere (enter your hosting provider's name server names) - zone changes usually update every 20 minutes - Name Servers manage name servers Option 1: Enter Name Servers (ns1.myhost.com, ns2.myhost.com)."
There are two blank boxes directly under Option 1, put the names (not the addresses) which your webhost gave you as their nameservers. Click the "enter name servers" button.
This will indicate that your domain should use your webhost's name servers, not Dynadot's. You then use whatever tools the webhost provides on their servers to set up the rest of your site.