Sipo Blog

比上一篇简单些，不过意译了不少….共同探讨…（不要笑，翻译过程中还是有很多乐趣的)

1．Bacteria are extremely small living things.
细菌是极其微小的生物。
2．While we measure our own sizes in inches or centimeters, bacterial size is measured in microns.
我们测量我们自身的大小是用英寸或者厘米, 而细菌的大小是以微米级测量的。
3．One micron is a thousandth of a millimeter:
一微米等于千分之一毫米:
4．a pinhead is about a millimeter across.
一个针头大约有1毫米宽。
5．Rod-shaped bacteria are usually from two to four microns long, while rounded ones are generally one micron in diameter.
杆状细菌（杆菌）通常有二到四个微米长，圆形的细菌直径通常是一个微米。
6．Thus if you enlarged a rounded bacterium a thousand times, it would be just about the size of a pinhead.
因此如果你把圆形细菌放大一千倍，它也只不过只有针头那么大。
7．An adult human magnified by the same amount would be over a mile(1.6 kilometer) tall.
一个成年人要是也被放大相同的倍数，那么它就有一英里（1.6千米）多高了。
8．Even with an ordinary microscope, you must look closely to see bacteria.
用一个普通的显微镜，你应该能够近距离地看到细菌。
9．Using a magnification of 100 times, one finds that bacteria are barely visible as tiny rods or dots. One cannot make out anything of their structure.
要是用一个能放大一百倍的东西看, 你会发现那些细菌是极其微小的杆或点并且几乎看不见，你无法辨认出他们的内部结构。
10．Using special stains, one can see that some bacteria have attached to them wavy-looking “hairs” called flagella. Others have only one flagellum.
用专用的污迹来观察，你能见到一些细菌身上附着许多看似波浪状的“头发”称之为鞭毛。另外一些（细菌）只有一个鞭毛。
11．The flagella rotate, pushing the bacteria through the water.
鞭毛不断旋转从而推动细菌在水中前行。
12．Many bacteria lack flagella and cannot move about by their own power, while others can glide along over surfaces by some little-understood mechanism.
好多细菌没有鞭毛也没法靠自己的力量运动，同时还有一些细菌可以通过一些尚不确知的机制在水面滑行。
13．From the bacteria point of view, the world is a very different place from what it is to humans.
从细菌的角度看到的世界与从我们人类角度看到的世界是完全不同的。
14．To a bacterium water is as thick as molasses is to us.
对于细菌来说，水的粘稠度就好像糖蜜对人的粘稠度一样。
15．Bacteria are so small that they are influenced by the movements of the chemical molecules around them.
细菌太小了，以至于他们的运动都要受到在他们周围的化学分子的影响。
16．Bacteria under the microscope, even those with no flagella, often bounce about in the water.
在显微镜下面的细菌,即便是那些没有鞭毛的, 也时常在水中乱跳。
17．This is because they collide with the watery molecules and are pushed this way and that.
这是因为他们与水分子碰撞从而一会被推到这一会又被推到那。
18．Molecules move so rapidly that within a tenth of a second the molecules around a bacteria have all been replaced by new ones;
分子运动速度如此之快以致于十分之一秒的时间内细菌周围的分子就会被新的分子所取代。
19．even bacteria without flagella are thus constantly exposed to a changing environment.
那些没有鞭毛的细菌就是这样经常暴露在一个不断变化的环境中。（even什么意思？）


原文：
48 Bacteria

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are usually from two to four microns long, while rounded ones are generally one micron in diameter. Thus if you enlarged a rounded bacterium a thousand times, it would be just about the size of a pinhead. An adult human magnified by the same amount would be over a mile(1.6 kilometer) tall.

Even with an ordinary microscope, you must look closely to see bacteria. Using a magnification of 100 times, one finds that bacteria are barely visible as tiny rods or dots. One cannot make out anything of their structure. Using special stains, one can see that some bacteria have attached to them wavy-looking “hairs” called flagella. Others have only one flagellum. The flagella rotate, pushing the bacteria through the water. Many bacteria lack flagella and cannot move about by their own power, while others can glide along over surfaces by some little-understood mechanism.

From the bacteria point of view, the world is a very different place from what it is to humans. To a bacterium water is as thick as molasses is to us. Bacteria are so small that they are influenced by the movements of the chemical molecules around them. Bacteria under the microscope, even those with no flagella, often bounce about in the water. This is because they collide with the watery molecules and are pushed this way and that. Molecules move so rapidly that within a tenth of a second the molecules around a bacteria have all been replaced by new ones; even bacteria without flagella are thus constantly exposed to a changing environment.