第一句 Understanding how languages emerge and survive holds great interest for researchers, since many languages are slipping away in increasing numbers around the world. Uncommon languages are better equipped to survive, researchers are learning, when young people are actively speaking them, whether in a family setting, in a school system, or in immersion programs. 1. emerge 出现 2. survive 存在 3. Sth hold great interest for sb 某事引起了某人极大的兴趣（写作可以借鉴） 4. slip away 消失 5. in increasing numbers= more and more 越来越多 6. Uncommon languages 不
