So how does a hole in the ground, a burrow, stay cool in a hot climate?
那么，地面上的一个洞穴要如何在炎热的气候中保持凉爽呢？
Just before the sand is inundated by the rising tide, the diatoms burrow again.
就在沙子被涨潮淹没之前，硅藻再次钻入。
It's a fine sunny day in the forest, and a rabbit is sitting outside his burrow, tippy-tapping on his typewriter.
这是森林里一个阳光灿烂的日子，一只小兔子坐在洞穴外，在打字机上敲敲打打。
The groundhog Phil emerged from his burrow in Pennsylvania to see his shadow, meaning six more weeks of winter weather.
土拨鼠菲尔从他在宾夕法尼亚州的洞穴中钻出去看他的影子，这意味着寒冬仍将持续六周。
This diabolical agent had the divine permission, for a season, to burrow into the clergyman's intimacy, and plot against his soul.
这个恶魔的代理人获得神圣的特许，在一段时间里，钻入牧师的内心，阴谋破坏他的灵魂。
Groundhogs spend the winter hibernating in a specially dug hibernation burrow, their breathing and heartbeats slowed to a snail's pace.
土拨鼠在一个特别的冬眠洞穴中冬眠，它们的呼吸和心跳慢到和蜗牛差不多。
Birds shelter in nests, rock overhangs, trees, and dense shrubs to avoid the hottest hours of the day, while mammals like the kangaroo rat burrow underground.
鸟类在巢穴、岩石悬垂处、树丛以及茂密的灌木丛中寻找庇护，以躲避一天中最热的时候；而像更格卢鼠这样的哺乳动物则选择藏身于地下的洞穴中。
Earthworms burrow deep into the soil.
蚯蚓钻土很深。
The larvae burrow into cracks in the floor.
幼虫钻进地板的裂缝中。
When there is a full moon, this nocturnal rodent is careful to stay in its burrow.
在有满月出现的时候，这种夜间出没的啮齿类动物小心地呆在它的洞里。
A black-tailed prairie dog perks up outside his burrow in South Dakota.
在南达科他州，一只黑尾巴的草原土拨鼠昂首站在他的洞穴外面。
In order to withstand tidal currents, juvenile horseshoe crabs frequently burrow in the sand.
为了抵御潮汐，幼年马蹄蟹经常在沙子里挖洞。
Adults of this species burrow deeply into the substrate where it is cooler and perhaps moister.
这个物种的成虫深入到底层中，那里更凉爽，也许也更湿润。
They're a type of rodent who, who burrow in the ground in the grasslands of the western United States and Mexico.
它们是一种啮齿类动物，在美国西部和墨西哥草原的地上挖洞。
However, when diatoms are observed under constant conditions in a laboratory, they still display periodic behavior, continuing to burrow on schedule for several weeks.
然而，当在实验室的恒定条件下观察硅藻时，它们仍然表现出周期性的行为，继续按计划挖掘几个星期。
Surprisingly, in areas where tidal currents are very weak, juvenile horseshoe crabs are found not to have significant barnacle populations, even though they seldom burrow.
令人惊讶的是，在潮汐流很弱的地方，幼年马蹄蟹的藤壶数量并不多，尽管它们很少在洞里活动。
The squirrel stores nuts in its burrow.
小松鼠将干果贮藏在地洞里。
But moles only know how to burrow down.
但是鼹鼠型的同事只知道如何挖洞藏身。
I shall come down your burrow and chivvy you out like an old stoat.
我要钻进你的地洞里去，象赶一只老鼬鼠一般把你赶出来。
Often they even stand in the burrow, with only their heads showing.
它们甚至常常站在洞中，只把头露出来。
As dusk descends on the mountains, a pangolin emerges from its burrow.
当薄暮涌入山区，一只穿山甲从地洞钻了出来。
Third, they burrow into the live tissue of trees that produce a toxic sap (Euphorbs).
还有，它们在树的活组织里挖掘洞穴，而树（Euphorbs树）的活组织产生的树液却是有毒的。
But it also gives malicious hackers an easy way to burrow deeper into people's lives.
但同时它也使得恶意黑客们很容易就深入挖掘到人们的生活。
The ideal riverbank is crumbly enough for the birds to excavate a nesting burrow with their beaks.
理想的河岸边土壤很松软，这些鸟可以很轻松的用自己喙去凿出适合做窝的地洞。
For the same reason, filter feeders, like clams and worms, burrow underground in most regions.
同样的道理，类似蛤和虫这样的滤食动物在大部分区域都埋在地下。
While I go across the burrow, I see another two big playgrounds and a tennis court at my left side.
我走过地洞，我看到了另外两个大操场，一个网球场在我的左边。
The black-bellied vole shuttles in and out of its underground burrow, ever alert to dangers outside.
黑腹绒鼠在地洞里进出穿梭，总是对外面的危险十分警觉。
The black-bellied vole shuttles in and out of its underground burrow, ever alert to dangers outside.
黑腹绒鼠在地洞里进出穿梭，总是对外面的危险十分警觉。
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