👉 An underground railway.
Alright class, settle down and listen close, Let’s talk about “metro,” it’s time to compose! The dictionary tells us, clear and bright, It’s an "underground railway," a wonderful sight. But what does that really mean, you see? Think of trains that travel silently – Beneath the streets, dark and deep, Carrying folks while others sleep! A metro is a system, swift and true, Connecting places for me and you. It’s like a secret tunnel, quick and low, Where trains are running, to and fro! Does that make sense? Any questions arise?