爬行动物

Larks dig holes in the ground and ptarmigan burrow into snowbanks – but the effect of sheltering is magnified by several birdshuddling together in the roots, as wrens, swifts, brown creepers,bluebirds, and anis do.

孤独的雄鸡躲避在茂盛的植被下或进入洞穴躲藏，如角状的百灵在地面挖洞躲藏和松鸡在雪岸挖洞躲藏，但是象鹪鹩、雨燕、褐色的爬行动物、蓝知更鸟和anis所做的一样，由于多只鸟一起拥挤在根茎下，所以躲避的效果被扩大。

Solitary roosters shelter in dense vegetationorenter a cavity horned larks dig holes in the ground and ptarmigan burrow into snow banks but the effect of sheltering is magnified by several birds huddling together in the roots, as wrens, swifts, brown creepers, bluebirds, and anis do.

孤独的雄鸡躲避在茂盛的植被下或进入洞穴躲藏，如角状的百灵在地面挖洞躲藏和松鸡在雪岸挖洞躲藏，但是象鹪鹩、雨燕、褐色的爬行动物、蓝知更鸟和anis所做的一样，由于多只鸟一起拥挤在根茎下，所以躲避的效果被扩大。

How such large creatures, which weighed in some cases as much as a piloted hang-glider (hang-glider: n.悬挂式滑翔机) and had wingspans from 8 to 12 meters, solved the problems of powered flight, and exactly what these creatures were-reptiles or birds-are among the questions scientists have puzzled over.

这种大型生物，有时候其重量相当于一个有人驾驶的滑翔机，且翼幅达到8到12米宽，是如何解决动力飞行问题，它们到底是何种生物－爬行动物还是鸟类，这些都是使得科学家迷惑的问题。

They concluded that such upwellings might indeed account for the catastrophic fish deaths, but that they would not explain the deaths of insects, reptiles, birds and mammals, since these animals breathe air rather than relying on dissolved oxygen.

于是他们得出了结论，这些上升流可能正是造成鱼类灭亡灾的主要原因。但是这样并不能解释昆虫，爬行动物，鸟类和哺乳动物的死亡，因为这些动物靠空气呼吸，而不是靠溶解氧。

They concluded that such upwellings might indeed account for the catastrophic fish deaths, but that they would not explain the deaths of insects, reptiles, birds and mammals, since these animals breathe air rather than relying on dissolved oxygen.

他们认为这样的湖水上涌的确有可能造成鱼群灾难性死亡，但是却无法解释为什么那些呼吸空气而不是依赖溶于水的氧气存活的昆虫、爬行动物、鸟类以及哺乳动物也大量死亡。

There, he saw giant tortoises and noted that the reptiles were different on each island.

在那里，他看到了巨大的乌龟，并指出，每个岛屿上爬行动物是不同的。

Any of various aquatic or terrestrial reptiles of the order Testudines, having horny toothless jaws and a bony or leathery ''.

龟龟鳖目的各种水生或陆生的爬行动物，有角质无齿的颌，骨质的或似皮革的''。

Any of various aquatic or terrestrial reptiles of the order Testudines, having horny toothless jaws and a bony or leathery shell into which the head, limbs, and tail can be withdrawn in most species.

龟龟鳖目的各种水生或陆生的爬行动物，有角质无齿的颌，骨质的或似皮革的壳，许多品种的龟可将头、四肢和尾缩进壳中

They think the nine-foot reptile crawled out of a nearby canal, looking for a new place to swim.

他们认为这个9足爬行动物从附近的运河中溜出来寻找一个新的游泳场所。

Either of two amphibious reptiles with shorter broader snouts than crocodiles.

两种两栖爬行动物，比一般鳄鱼有更宽、更短的鼻子。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。