a type of urban public transport using trains that are smaller and lighter than regular trains, often running on tracks in city streets or on dedicated lines

lekka kolej, tramwaj
a series of connected carriages that travel on a railroad, often pulled by a locomotive

pociąg, skład
(of a train) to travel along a track on wheels, carrying passengers or goods

kursować, jeździć
a pair of metal bars that trains use to move

tor kolejowy, szyna
being present, existing, or in circulation in the current time or situation

obecny, w obiegu
pulled or powered by a horse or horses

ciągnięty przez konie, konny
a machine that uses steam made from boiling water to produce power and make parts move

maszyna parowa, silnik parowy
a source of power used for lighting, heating, and operating machines

elektryczność
able to be trusted to perform consistently well and meet expectations

niezawodny, godny zaufania
to make something smaller in amount, degree, price, etc.

zmniejszać, redukować
the coming and going of cars, airplanes, people, etc. in an area at a particular time

ruch, trafik
the natural world around us where people, animals, and plants live

środowisko
any substance that can produce energy or heat when burned

paliwo, materiał opałowy
to enter a bus, ship, airplane, etc.

wsiadać, wchodzić
a system or method for carrying people or goods from one place to another by cars, trains, etc.

transport
the second smallest continent, next to Asia in the east, the Atlantic Ocean in the west, and the Mediterranean Sea in the south

Europa
the largest continent in the world

Azja, kontynent azjatycki
not causing or spreading pollution or contamination, especially radioactive contamination

czysty, nie zanieczyszczający
to hold someone or something and take them from one place to another

nosić, przenosić
a group of independent but interrelated elements comprising a unified whole

system, całość
