A significant secular increase has occurred in particulate pollution over the North Atlantic.

在北大西洋上粒子的污染明显地逐年增加。

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Drumming up new business in America is difficult because the market is saturated (although cashless transactions are showing a secular increase).

ECONOMIST: Visa plans a $19 billion IPO

The secular trend is confirmed by the significant increase in the percentage of people describing themselves as having no religion from 15% to 25%.

BBC: 2011 Census: Is Christianity shrinking or just changing?

Even secular employers have reason to worry about a possible increase in sexualization of the workplace.

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