The question of whether the decrease in plant fecundity caused by the spraying of pesticides actually causes a decline in the overall population of flowering plant species still remains unanswered.

喷洒杀虫剂导致的植物繁殖力下降是否真的会导致开花植物物种总数的下降，这个问题仍然没有答案。

youdao

Doctors warn that it's unclear if the decrease marks a permanent decline.

医生警告称，目前还不清楚现在的下降是否意味着永久性的下降。

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But single men without any college education saw their inflation-adjusted earnings decrease, and they did not have a wife's wages cushion the decline.

但是，没有受过大学教育的单身男子看到，他们通胀调整后的收入在下降，而且没有妻子的工资作为缓冲。

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(SAYING:mortality rates in the United States) About 40 percent of the decrease for men resulted from the decline in lung cancer death.

VOA: standard.2010.03.25

The suicide rate then rose gradually through the 1960s and 1970s, but in the 1980s it began to decrease, continuing to decline steadily until 2000. (Anyone recall what happened to the economy in 2000?) From 2000 to 2007, the last year for which the researchers had data, the suicide rate was on the rise.

FORBES: Suicide and Financial Crisis: How Real Is the Risk?

Probably not: the price of sugar would drop, America's sugar industry would decline and the pollution of the Everglades would decrease.

ECONOMIST: Letters

The global decrease of coastal marine resources and decline in marine biodiversity will impact countries dependent on coastal fishing, fish-processing industries and tourism causing economic hardship as well as destabilising food security for the 1 billion people who depend on fisheries for most of their protein diet.

UNESCO: THEMES