Today, Lily and her mom are waiting for a taxi by the road. 今天，莉莉和妈妈正在路边等出租车。 A taxi is coming. 一辆出租车开过来了。 Lily: Mom, can I sit in the front? 莉莉：妈妈，我可以坐在前面吗？ Mom: No, sweetie. It's...