1.scar v.给......留下疤痕，创伤
retina n.视网膜
I got too much oxygen and it caused my blindness because it scarred my retinas.
保温箱里氧气太多，导致我双目失明，因为其损伤了我的视网膜。
2.live 真的 cherished弥足珍贵的
More than 27 million American families purchase a live Christmas tree for the holiday, and decorating it is a cherished tradition.
2700多万美国家庭为圣诞节购置了一颗真正的圣诞树，装饰圣诞树是一种弥足珍贵的传统。
3.sanctuary n.鸟兽保护区，禁猎区
At the elephant sanctuary in Tennessee and its zoos around the country, discarded trees become playthings.
在田纳西州的大象保护区和全国的动物园里，废弃的树成为了玩具。
4.reservoir n.水库
so state environmental officials in Texas to West Virginia to California collect trees to sink into lakes and reservoirs to provide habitat for small fish.
因此从德克萨斯州到西弗吉尼亚州再到加利福尼亚州的环境官员收集树木，沉入湖泊和水库，为小型鱼类提供栖息地。
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