0 a metal structure on wheels that is used for carrying things -- carrello, carretto
a luggage trolley un carrello portabagagli
1 an electric vehicle that transports people, usually in cities, and goes along metal tracks in the road -- tram
3 (also tea-trolley, ( American) teacart) a small cart, usually consisting of two or three trays fixed on a frame, used for serving tea, food etc -- carrello
She brought the tea in on a trolley.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Possiamo completarlo passo dopo passo, indipendentemente dalla lunghezza della strada, e non può essere completato, per quanto breve sia la strada, se non segni nemmeno la tua impronta.