The body reacts in this way because it sees sleep loss as a major source of stress.

身体以这种方式回应是因为他认为睡眠不足是压力的主要来源。

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As well as the noise, traffic, loss of arable land and threat to birds, airports are a major source of pollution and greenhouse gas emissions.

机场不仅导致了噪声、交通堵塞、耕地流失，威胁鸟类，还是主要的污染源和温室气体排放源。

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But an empty hospital bed is a revenue loss, and asthma is Children's hospital's leading source of admissions.

但是病床空置就意味着收入下降，因为哮喘病是儿童医院患者入院率的主要来源。

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Examples include large medical bills, the loss of financial aid or an unexpected change in the financial condition of their source of support.

VOA: special.2009.01.29

"My roommates were a source of great comfort and support to me during this time of great loss."

VOA: standard.2010.08.07

Based on an unscientific impression the biggest source of hobby loss cases is businesses involving horses.

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That's potentially a huge source of income loss to an already strapped federal government.

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Imitation is a common source of trouble and loss in the market for contemporary Chinese art.

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