within the snow on these avalanche-prone slopes. 都在这些极易发生雪崩的山坡上冬眠
it comes within the range of the seabirds. 又进入了海鸟的攻击范围
Within a matter of weeks the canopy has closed and only a few wheeling shafts of light penetrate the woodland. 再过几个星期,树冠层重新遮蔽天空, 透到地面的只有丝丝缕缕的阳光
than in any tropical rainforest but it's all contained within the trees. 巨大针叶林里的有机物质要多的多 但是都在大树里
but they're protected within armor plated cones 但松果被层层装甲包围着
Within a few days they develop spots of pigment which, when they're adult, they will use to communicate with one another. 几天后它们长出一些色斑 等到成熟后,就可以用这些色斑来互相联系
Corals thrive in these waters with the help of microscopic plants, algae that grow within the tissues of the polyps 珊瑚在一种微生植物的帮助下生长-海藻 是居住在珊瑚虫里的一种共生藻
The young all emerge within a day or two, a marvel of timing. 让人惊讶的是所有的小雪雁 差不多都在一两天内出生
but within days the plant will recover 然而被吃掉的那部分仅在数天之内就能恢复生长
Nearly all will give birth within the next 10 days. 在接下来的十天之内 几乎所有的小家伙都会呱呱坠地