One source of error is refraction, the bending of light beams as they pass through air layers of different temperature and pressure.

误差的一个来源是折射，即光束通过不同温度和压力的空气层时发生的弯曲现象。

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DNA teased from these human remains may help answer one of the most puzzling questions in Pacific anthropology: did all Pacific islanders spring from one source or many?

从这些人类遗骸中提取的 DNA 可能有助于回答太平洋人类学中最令人困惑的问题之一：所有太平洋岛民是来自一个源头，还是不同源头呢？

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One source predicts no major shift in policy will be forthcoming at the committee hearings.

有一消息预言在委员会听证会上不会有政策上的重大变动。

《柯林斯英汉双解大词典》

It also warns that soft drinks and other sugar-sweetened beverages are the number one source of added sugars in the American diet.

VOA: standard.2010.04.25

Some of them are unique to one source, some are not, but ultimately the claim is that these have all been merged, and have left us then with an overall total of ten. This may in fact be true.

有些瘟疫只有一个出处，有些则不是,最重要的是，它们被混在一起,流传下来的，就有了十次瘟疫，也许真的有。

耶鲁公开课 - 旧约导论课程节选

There's only one source for that, there's only one source of that fertilized egg.

它的来源只有一个,受精卵的来源是唯一的

耶鲁公开课 - 生物医学工程探索课程节选

Online, an average reader spends less than 10 minutes with any one source and they read fewer stories.

CNN: Does local journalism have a future?

From one source at root: a wrong standard of morality, of good and evil.

FORBES: By Eliminating Failure, The Government Robs Us Of Success

One source said he had concerns about the way the case was handled by Spackman.

BBC: Kevin Lane murder conviction going to Court of Appeal