send to shop and replace the laptop keyboard 

Maybe. I don't know.
I'd save the hassle and just replace the keyboard.

dude that is a scissor switch membrane laptop keyboard.
you check and see if the 2 white pieces have any broken part or not.
if it's not broken, you can try to put it back together.
or you can simply ask for warranty replacement if it's under warranty.

or you can buy a mechanical keyboard and use it instead of the built-in laptop keyboard   

Get a HHKB.
It's a very lightweight mechanical keyboard, weight less than 550g.
Small in size, widely use for professional, travel, attending events etc.
Well good to have.