The problem is that competition ordinarily cannot be observed directly but must be inferred from the spread or increase of one species and the concurrent reduction or disappearance of another species.

问题是，人们通常不能直接观察竞争，而必须从一个物种的扩展或增加和同时另一个物种的减少或消失来推断。

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"There are a multitude of reasons for the recent increase in teen pregnancy," says Miller. "Reproductive coercion may be one piece of the puzzle."

“有诸多原因造成了近期未成年人怀孕率的增长，”米勒说，“生育强迫也许是造成当前困局的一个原因。”

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One spin-off will be an increase in production flexibility for companies essentially making the same product in two or more locations.

一个附带影响将是提升一些公司的生产灵活性，这些公司实际上是在两个或更多地点制造同一种产品。

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Also, the state will be the one to determine whether to block the increase, not the Feds (though I think I made that part clear.) By 2014 these reviews could aid states in determining which health insurers are allowed to sell over the exchanges and which are banned.

FORBES: Sebelius To HMOs: If You Raise Rates 10% You Will Answer To Me

He also called for significant spending cuts, so that the growth in government spending could be restricted to one per cent less than the increase in G.

NEWYORKER: Super-Rich Irony

One way would be to increase the production of Artemisia.

ECONOMIST: Treating malaria