Today's focus:

火车票 (huǒ chē piào) train ticket

我买火车票。(wǒ mǎi huǒ chē piào) I want to buy a train ticket.

往返(wǎng fǎn) round-trip

火车几点开？(huǒ chē jǐ diǎn kāi) What time the train is departing?