It is feared that the harmful chemicals in denim have spread far and wide.

人们担心，牛仔布中的有害化学物质已经到处扩散了。

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This means that while raindrops can form, chemicals are often spread far and wide and potentially damage the environment.

这意味着，雨滴形成的同时，化学物质通常会扩散到很远很远的地方，有可能破坏环境。

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The news has spread far and wide.

消息流传很广。

《新英汉大辞典》

Rumour of the meat sandwich spread far and wide, Philadelphians say.

BBC: Love, war and the Philly cheesesteak

In that accident, the lack of a containment vessel surrounding the reactor meant radioactive materials from the accident were spread far and wide.

WSJ: Japan to Take 40 Years to Dismantle Fukushima Nuclear Plant

But the consequences of Afghanistan's poppy cultivation spread far and wide.

BBC: Afghan challenges for President Karzai