原因是因为，正如80年代的流行乐队“赶时髦”一度宣称的，一切事物都是积少成多。
The reason for this is because, as the popular 80's band Depeche Mode once declared, everything counts in large amounts.
放松货币的政策一度非常流行。
结核病的流行曾一度被宣布为突发公共卫生事件，而现在趋势已经扭转。
The tuberculosis epidemic, once declared a public health emergency, has been turned around.
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