Although there are no regulations that prevent American companies from operating here, the three popular American Web sites have been blocked in China for several years.

虽然并没有法规阻止美国公司进入这一领域，但数年来，中国网民一直无法登陆这三家备受欢迎的美国网站。

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The company has been operating there for a few years, doing several million dollars of business.

这家公司已经在巴西运作了几年了，正在做着好几百万美元的生意。

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Notice the company has had similar levels of positive operating cash flow for several years.

注意：公司几年来都有类似水平的正经营现金流。

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As a result it had been operating at a loss for several years and this was not sustainable.

BBC: Hull care home to close due to running costs

AIG, an American giant, has been operating profitably in China for several years.

ECONOMIST: Foreign insurers eye up a fast-expanding market

For several years Massey generated more than a third of Fluor's operating profits with one-tenth of its revenues.

FORBES: Not King Coal