AWhat's the matter?
怎么啦？
BWhich subway should I take to get to the East Side?
我要搭哪趟地铁才能去东区。
AOh, you have to take the shuttle to Grand Central.
噢，你必须搭去Grand Central的短程火车。
BWhich train is that? Which platform does it leave from?
是哪一辆？它从哪个站台驶离？
更多信息请查看入门口语