Here's why and some ways to express it:
* Sushi is a Japanese concept: The word "sushi" itself originates from Japanese.
* No direct equivalent: Armenian doesn't have a specific word for sushi like English does.
* Descriptive phrases: You could use descriptive phrases like:
* "Ճապոնական ձկնային ուտեստ" (japonakan dzknain udesd) - meaning "Japanese fish dish"
* "Ձկան ռոլեր" (dzkan rolner) - meaning "fish rolls"
* "Մրգերով ու ձկով ռոլեր" (mrgerov u dzkov rolner) - meaning "rolls with fruits and fish"
The most suitable translation depends on the context and the specific type of sushi being discussed.