斯皮兹战败后，巴克成为新的头犬。那么，它是否能胜任这份工作？　　Section 1 Buck became the lead-dog巴克成为头犬　　“Well， what ......

One day in March, my friends and I went to Baiquan Hill. In the morning, we got on the bus. Two hours later, we saw the ......