英语翻译To us,the environment in which fish dwell often seems cold,dark and mysterious.But there are advantages to living in water.And they've played an important role in making fish what they are.One is that water isn't subject to sudden tempera

英语翻译
To us,the environment in which fish dwell often seems cold,dark and mysterious.But there are advantages to living in water.And they've played an important role in making fish what they are.
One is that water isn't subject to sudden temperature changes.Therefore it makes an excellent habitat for a cold blooded animal.
Another advantage is the water's ability to easily support body weight.Protoplasm has approximately the same density as water.So a fish in water is almost weightless.This weightlessness in turn means two things:
1) A fish can get along with a light weight and a simple bone structure.And
2) Limitations to a fish's size are practically removed.Yet there is one basic difficulty to living in water the fact that it is incompressible.For a fish to move through water,it must actually shove it aside.Most can do this by wiggling back and forth in snakelike motion.The fish pushes water aside by the forward motion of its head and with a curve of its body and its flexible tall.Next the water flows back along the fish's narrowing size,closing in at the tall and helping the fish propel itself forward.
The fact that water is incompressible has literally shaped the development of fish.A flat and angular shape can be moved through water only with difficulty.And for this reason,fish have a basic shape that is beautifully adapted to deal with this peculiarity.

To us,the environment in which fishdwell often seems cold,dark and mysterious.But there are advantages to livingin water.And they've played an important role in making fish what they are.
对我们而言,鱼类的栖息环境往往好像是寒冷的,黑暗的,和神秘的.然而生活在水中也是有一些有利因素的.而且这些有利因素在鱼类的形成过程中扮演了重要的角色.
One is that water isn't subject tosudden temperature changes.Therefore it makes an excellent habitat for a coldblooded animal.
其中之一就是水不会轻易受到温度突变的影响.因此这给冷血动物提供了一个绝佳的生存环境.
Another advantage is the water'sability to easily support body weight.Protoplasm has approximately the samedensity as water.So a fish in water is almost weightless.This weightlessnessin turn means two things:
另一个有利因素是水有轻易地支撑体重的能力.原生质同水有着非常接近的密度.所以一条鱼在水中几乎是无重量的.这种失重相应地意味着两件事：
1) A fishcan get along with a light weight and a simple bone structure.And
2) Limitations to a fish's size arepractically removed.Yet there is one basic difficulty to living in water thefact that it is incompressible.For a fish to move through water,it mustactually shove it aside.Most can do this by wiggling back and forth insnakelike motion.The fish pushes water aside by the forward motion of its headand with a curve of its body and its flexible tall.Next the water flows back alongthe fish's narrowing size,closing in at the tall and helping the fish propelitself forward.
1）一条鱼可以发展出很轻的体重和一个简单的骨骼结构.并且
2）对鱼类体积的限制几乎可以剔除.然而对于生活在水里有一个基本的困难,那个事实就是水是不可压缩的.对于一条鱼来说,在水中穿行,其实就是将水用力挤压到两侧.鱼儿能够做的最多的就是像蛇形移动似的不停地摆动.鱼类通过头部的向前移动,以及身体和富有弹性的尾巴的弯曲来将水推向两侧.接着水顺着鱼类窄细的体型向后流动,在尾部聚拢并且帮助鱼类推动他们自己前行.（我猜 tall 应该是tail 吧）
The fact that water isincompressible has literally shaped the development of fish.A flat and angularshape can be moved through water only with difficulty.And for this reason,fish have a basic shape that is beautifully adapted to deal with thispeculiarity.
水是不可压缩的这个事实确实深深地影响了鱼类的成长发育.一个扁平而有棱角（或扁平而瘦削）的形状只能在水里艰难地穿行（这句我拿不准）.正是这个原因,鱼类有一个完美地适应处理这个特性的体型.

对我们来说，鱼居住的环境通常看起来寒冷，黑暗和神秘。但是在水中生活有好处。和他们打过的鱼来说是重要的作用。一个是水不受突然的温度变化。因此，它使一个冷血动物绝佳的栖息地。另一个优点是水可以轻易的支持身体的重量。细胞质与水的密度大致相同。所以鱼在水中几乎是没有重量。这种失重意味着两件事：1）鱼可以有很轻的重量和简单的骨结构。2）对鱼的大小的限制被去除。然而，生活在水中有事实上它是压缩的一个基本的困难...

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对我们来说，鱼居住的环境通常看起来寒冷，黑暗和神秘。但是在水中生活有好处。和他们打过的鱼来说是重要的作用。一个是水不受突然的温度变化。因此，它使一个冷血动物绝佳的栖息地。另一个优点是水可以轻易的支持身体的重量。细胞质与水的密度大致相同。所以鱼在水中几乎是没有重量。这种失重意味着两件事：1）鱼可以有很轻的重量和简单的骨结构。2）对鱼的大小的限制被去除。然而，生活在水中有事实上它是压缩的一个基本的困难。一只鱼在水中移动，必须把它放在一边。大部分可以通过来回扭动。鱼将水推开通过头部的向前运动、身体的曲线和灵活的高。接下来水流沿着鱼狭窄的尺寸，封闭在高，帮助鱼向前推进。事实上，水是可压缩的塑造了鱼的发展。平的有角的形状可以在水中移动有困难。因为这个原因，鱼有一个基本的形状来适应这种特殊性。

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对我们来说,鱼住的环境往往寒冷,黑暗和神秘。但是有优势在水中生活。,他们发挥了重要作用使鱼他们。
一个是水不受突然的温度变化。因此它让一个优秀的冷血动物的栖息地。
另一个优势是水的能力容易支持体重。原生质约有相同的密度。这样一条鱼在水中几乎是失重。这种失重反过来意味着两件事:
1)一条鱼可以相处一个重量轻和一个简单的骨骼结构。和
2)限制鱼的大小几乎删除。但有一个基...

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对我们来说,鱼住的环境往往寒冷,黑暗和神秘。但是有优势在水中生活。,他们发挥了重要作用使鱼他们。
一个是水不受突然的温度变化。因此它让一个优秀的冷血动物的栖息地。
另一个优势是水的能力容易支持体重。原生质约有相同的密度。这样一条鱼在水中几乎是失重。这种失重反过来意味着两件事:
1)一条鱼可以相处一个重量轻和一个简单的骨骼结构。和
2)限制鱼的大小几乎删除。但有一个基本的困难生活在水是不可压缩的事实。鱼在水中移动,它必须把它放在一边。大多数可以通过来回扭动蛇一般的运动。鱼推水一边向前运动的头和身体的曲线,其灵活的高。下的水流回鱼的缩小规模,关闭在高和帮助鱼继续向前。
事实上,水是不可压缩的鱼的发展。平面和角形状可以移动通过水只有困难。,因为这个原因,鱼的基本形状漂亮的适应处理这个特点
希望楼主可以采纳！！

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