詞匯

1. ?march 前行，行進

2. ?adventurous 大膽冒險的

3. ?lumber 緩慢而笨重地前行

4. ?edge 邊緣

5. ?population 人口

To north

15 Asian elephants are on a long march north. Why, No?One?Knows.

Maybe they're looking for better food. Maybe they've gotten lost. Maybe they're just adventurous and having a good time.

No one is quite sure. But for some reason, a herd of 15 Asian elephants has been lumbering its way across China for more than a year, traveling through villages, forest patches and the edges of the city of Kunming, population 8.5 million.