B：It's so crowded. All the seats are taken. Let's go there. There is a seat over there.
好挤喔！所有的椅子都被坐满了，我们去那边，那边有一个座位。
A：It's a priority seat. We can not sit there. We should give the seats to those eld, pregnant and disabled people.
那是爱心座位，我们不能坐。我们要让给老年人、孕妇和行动不便的人。
B：Yeah, you are right. Let's stand. It takes only about 20 minutes.
嗯，你是对的，我们站着吧！20分钟就到。
