The only reason the keys would stick is because of foreign debris/liquid that is on your keyboard. You don't want to go about taking your MBP apart since it's new and under warranty, so try to clean out your keyboard as safely as you can.
If it's just plain dirty, have a look here and see if you want to try cleaning them yourself. And yes, some parts can be easily broken!!! Fixing the sticky keys on a 2017 MacBook Pro https://www.youtube.com/watch?v=UWbmUALBXDs
Forums that sponsor and discuss Macs have many complaints with long discussions about keyboard problems with the 2017 MacBook Pro models. If there is no liquid spill involved, our suggestion is to make an appointment with your local Apple genius bar and have them look at it. The keyboard on the 2017 models can not be replaced without replacing the entire top case of the MacBook Pro. If your machine is out of warranty, that can be a very costly repair.
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