通常，如果资源由于规模的变化而显得不足，而执行速度又至关重要时，我认为您可能需要对某些Web Services进行紧密耦合。
In a general sense, I've proposed that you might need to tight-couple some Web services as a result of resources becoming scarce due to changes in scale and where execution speed is critical.
现在，《新英格兰医学杂志》在一篇重要评论中指出，睡眠不足的医生在准备执行非紧急手术时应当得到病人的知情同意。
Now the New England Journal of Medicine argues in an editorial that sleep-deprived physicians set to perform elective surgery should have to get the informed consent of the patient.
绝大多数期权直到过期都没有执行；因为资产的价格的波动不足以让它值得执行。
The vast majority of options expire without being exercised; the asset price never moves sufficiently to make it worthwhile.
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