1·The broken shell of a recently-hatched ptarmigan egg rests on the ground near Tebay Lakes, Alaska.
在特贝湖旁边的空地上，躺着一片由刚刚破壳而出雷鸟所留下的破损的蛋壳。
2·Since his first research visit in 1980, he has traipsed repeatedly among caribou, white polar hare and ptarmigan in this remote area-accessible only by helicopter-for one to three months at a shot.
在这片只有直升机能到达的遥远之地，从1980年第一次的实地研究开始，罗辛每次都停留一到三个月，在驯鹿、北极野兔与雷鸟之间已经反复踱步无数次。