drop-off

基本解释

Isotopes of carbon in tree rings and beryllium in ice cores show a drop-off in solar radiation during much of the period.
树木年轮的碳同位素和冰核中钚同位素的检测都显示出在上述阶段的大多数时间内太阳辐射能量出现下降。
Carbon financiers have already begun leaving banks in London because of the lack of activity and the drop-off in investment demand.
由于缺乏行动和投资需求的急速下降，碳金融家开始离开在伦敦的银行。
Of course, the frequency of new words used drops off in longer novels, but the patterns of the drop-off differed and were specific to each of the three authors.
当然，在长篇小说中，这种使用新词的频率会下降，但即使是频率的下降模式也各不相同，为三位作家所特有。

By 2012,they hope to set up a network of pick-up and drop-off locations for rented bicycles throughout New York City.
How far along do I have to go drop off a - c when I have slope -2b?
斜率-2b的线还要经过哪个横坐标呢
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It was late 2008 and the economy was faltering and all businesses were seeing a drop-off.
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The major rental companies had waived their drop-off fees for any car rented before September 11th.
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