Submersible

Imagine trying to carry groceries through a crowded store without bumping into anything or anyone. Navigating a submersible through the depths of the ocean is akin to this task, as it must move carefully and precisely to avoid obstacles in its path. Just as you use a shopping cart to maneuver through tight spaces, a submersible is engineered to navigate the pressures and constraints of the underwater world, utilizing its design to steer clear of underwater hazards while achieving its goal.
Practice Version

Submersible: A small watercraft designed to operate underwater. Submersible. A submersible is a vehicle that can go underwater for exploring the ocean or conducting research.