Unburnt vegetation rots quickly, but black carbon persists in the soil for many centuries.
未燃烧的植物腐烂得很快，但黑碳在土壤中存留了好几个世纪。
"It's no disgrace to be colored," the black entertainer Bert Williams famously observed early in the century, "but it is awfully inconvenient."
黑人表演者伯特·威廉姆斯在本世纪初提出了一条著名的观点：“作为有色人种并不丢脸，但是极其不方便。”
It's a complex issue, but he only sees it in black and white.
那是个复杂的问题，但他却只看到对与错的分别。
You see, the first "videophones"—that's what they're called—were made in Japan, but they can only show a still black and white image, so this videophone is much better than that.
你看，第一批被称作“可视电话”的设备是日本制造的，但它们只能显示静止的黑白图像，所以这款可视电话要比那款好得多。
Shoppers in the UK are happy on Black Friday but the clerks in the supermarkets are not.
英国的购物者在黑色星期五很高兴，但超市里的店员却不高兴。
I tried to follow, but the water was turning black in front of me.
我努力跟上去，但我前面的水域已经变黑了。
There was not a question but only a small black "X" in the middle of the paper.
试卷上没有问题，只是在中间部分有一个黑色的小 “X”。
Many white voters told pollsters that they would vote for the black candidate but, in the anonymity of the voting booth, they did not.
很多的白人选民对民意调查人声称自己愿意投票给黑人候选者，但是在匿名投票中，他们却没有这样做。
[" subway, "1986 and 2003.] But I started in black and white, so there's a whole passage in this new book with subway photographs that are equally good.
1986和2003但是，我开始拍摄这些照片的时候使用的是黑白胶片，所以在这本新书中有关地铁的照片也会非常的棒。
This is not about black women but about women in general.
现在要说的不是黑人女性，而是女性大众。
There is still a staggering gap—almost a third of the state’s students are black—but the improvement in Alabama was the largest in the country over that period.
虽然这与该州三分之一的学生为黑人还是有差距的，但在过去的这段时间中，阿拉巴马州已经是全国进步最快的了。
But dreams are very rarely in black and white.
但是用黑纸白字把梦想描绘出来是极难的。
As a Native American raised in a white environment, I have never seen things in black and white but always in many colors and shades of gray.
我是一个在白人环境里长大的美国原住民，我眼里的事物从来都不是黑白色的，而是中间有着许多灰色色调。
He's just a clown in black velvet, but he's also some kind of masterpiece.
他只不过是个黑丝绒的小丑，但也是某种艺术杰作。
But fewer than one in ten black women intermarries.
而黑人女性中只有不到十分之一的人同异族结婚。
Right now the bed is available in black and white, but the price is not listed on the company’s web page.
目前这种床有黑、白两色，但公司网页上没有列明价格。
Tweener tries his best to fit in, but the black inmates force him to leave.
Tweener尽力想融合入他们，但黑人囚犯强迫他走开。
These speculations sound like science fiction. But the theory of black holes in space is accepted by many serious scientists and astronomers.
这些设想听起来像科幻小说，但空间中黑洞的理论被许多严谨的科学家和天文学家接受。
Its moose had died of old age, days before. But a big, friendly, black bear rolled in the sun.
公园里的麋鹿几天前因年老而死去，但有一只友善的大黑熊在阳光下打滚。
But Russell was a black star in turbulent Boston in the 1960s.
但是拉塞尔在1960年代的混乱的波士顿是一个黑人球星。
For protocol testing, you don't describe the structure of the implementation, but rather, in black-box style, how a sender and a receiver communicate.
在对协议进行测试时，你不必描述协议实现的结构，但是如果采取黑盒方式，则需要描述发送者与接收者之间的通信方式。
It was a bright, primary-colored world, but the children in it were assiduously black and white.
这是一个灿烂明丽的多色调世界，但画面上的孩子们始终有黑白两色。
Every woman knows she should have a little black dress, but it's important to invest in one that's special.
每个女人都知道自己应该拥有一件小黑裙，不过重点是购入的这件小黑裙应该是特别的。
I had the material carefully packed in black boxes, but they wouldn't let me carry them into the cabin.
我把这些材料小心地装在黑盒子里面，但他们却不让我带上机舱。
I had the material carefully packed in black boxes, but they wouldn't let me carry them into the cabin.
我把这些材料小心地装在黑盒子里面，但他们却不让我带上机舱。
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