The temperature higher-order function returns the value of current, which has either the hot or cold function.

temperature高阶函数返回current的值，而current又可以有hot或cold函数。

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Trained health workers, proper cold chain function, and surveillance are all necessary to ensure vaccines reach every child who needs them.

训练有素的卫生工作者，适当的冷藏链功能和监督都是必要的，以确保每个需要它们的儿童获得疫苗。

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Its function as fuel is endangering its survival, as even park rangers charged with protecting it have been known to burn it to keep warm on cold nights.

可以作燃料也危及到了它们的生存。即使是负责保护它们的公园巡逻队员也会在寒冷的夜晚不得己地利用它们取暖。

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Dismantling the entity that performed this function during the Cold War, the U.S. Information Agency, was just one of the precipitous and strategically portentous mistakes made in the heady days following the tearing down of the Berlin Wall.

CENTERFORSECURITYPOLICY: Disarmed in the War of Ideas

Since ancient Egypt, if not long before, hats have served the practical (protection against heat and cold) and the symbolic (religious function, military rank, social status).

FORBES

Thus, we must be certain the Cold War relics we keep (with their "eight-track tape" technology) function when called upon.

CENTERFORSECURITYPOLICY: Center For Security Policy