The grass grows vigorously during the short, intense summer 在这短暂夏日 草儿茁壮生长
It's a long way to travel, but for a short period, the tundra is the ideal place for a grazer. 北极的苔原虽然路途遥远, 但仍有短短的一段时间是食草动物的天堂
Ideal sites are in short supply and quarrelsome neighbours are all around. 理想的地方寥寥无几,邻里纠纷时常发生
But for a short time each year, the long, dark winter releases its grip. 每年却总有短短的一阵日子 漫长阴暗的冬天也会放松它的钳制
The window of opportunity is short. 机会之窗随时可能关闭
The periods of boom in Death Valley are short. 死亡谷中的花期很短
but these are the short moments that make it possible to live in deserts the year round. 但就是这些短暂的日子使它们 得以全年在沙漠中生活