20-英语听力

[00:01.78]The culture of veneration and protection extends right across Tibet
这种尊重保护生灵的文化在西藏传播开来 [00:06.89]helping to preserve a unique yet fragile ecosystem
从而使这种独特脆弱的生态环境得到了维持 [00:17.62]Out on the plateau there's a small creature that's at the root of much of the grasslands' delicate ecology
在草原微妙的生态系统中有一种小生物生活在草原微妙的生态链的底端 [00:25.46]Despite summer snow storms, the pika, a relative of rabbits and hares
尽管夏天有暴风雪 鼠兔一种家兔和野兔的同类 [00:30.47]is perpetually eating and gathering grass
仍然在不停地吃草并储存起来 [00:33.60]and digging burrows for its family
还给家人刨洞 [00:39.99]The pika's constant excavations aerate the soil,which helps the plants to grow
属兔不停地挖洞使空气进入土壤帮助植物长得更好 [00:50.19]In the short summer
在短暂的夏天 [00:51.11]the landscape is carpeted with hardy grasses and decorated with endemic flowers
耐寒的草铺满了大地 野花也装饰了大地 [01:20.10]In such a frugal environment
在这样原始的环境下 [01:22.37]the pika's farming helps to kickstart the food chain
鼠兔的活动有益于保持食物链的完整 [01:26.56]But the pika itself is a very tasty morsel
鼠兔肉很可口但是鼠兔数量太少了 [01:31.79]Its presence has enabled an uneasy relationship to develop between two of the plateau's most opportunistic predators
它现在的数量勉强能够维持高原上的两大肉食动物 [01:40.59]the fox and the bear
狐狸和熊