Utilising the cheap and plentiful coal tar that was an almost unlimited byproduct of London's gas street lighting, the dye works began producing the world's first synthetically dyed material in 1857.

煤焦油是伦敦煤气道路照明几乎无限的副产物，利用便宜量大的煤焦油，染厂于1857年开始生产世界上第一种合成染色材料。

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New Story is a group that works to bring cheap but good houses to people who can't afford them.

New Story是一个致力于为买不起房子的人提供廉价优质的房子的组织。

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Some people may choose to say comforting phrases over and over or some might resort to purchasing a cheap stress ball, but what I find works for me is just thinking happy thoughts.

一些人选择不断地说一些安慰的话语，或者一些人去买一个便宜的降压球，但是我觉得像一些愉快的事情对我最有效。

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And these principles, value investing, for instance, buying cheap, buying good, works in all these countries, according to their research.

FORBES: Intelligent Investing Transcript

Now consider the fact that all it would take to wipe out these emissions would be the introduction of a small photovoltaic device to replace each charger - one which is flexible, durable, cheap to produce and, crucially, works in ambient (indoor) light.

BBC: NEWS | Science/Nature | Switching on to nanogeneration

Big and cheap, the lofts allowed artists to sleep among their works.

FORBES: Illegal Living ... In Multi-Million Dollar SoHo Lofts