He wanted to have a source of income after his retirement; until then, he wouldn't require additional money.

他想在退休后有个收入来源，而这之前则不需要额外的钱。

《柯林斯英汉双解大词典》

When running as a top-level language, XQuery needs to have a source of input data.

当 XQuery 被作为顶层语言时，它需要一个输入数据的源。

youdao

Now you have a source document from which to harvest requirements to store in the project database.

现在有了一个源文档，从它采集需求，保存在项目数据库中。

youdao

They have a material that supplies electrons and a power source that lifts the energy level of those electrons.

VOA: special.2010.09.01

Actually, what I did was used 107kJ/mol a different source so I have 107.

事实上，我使用了另一个路径,计算得到了。

麻省理工公开课 - 固态化学导论课程节选

You might not know have any symptoms, you might just have a latent source of the microorganism somewhere in your body.

你可能没有任何症状,微生物可能只是在体内某处,暗中不断滋生

耶鲁公开课 - 生物医学工程探索课程节选

If you have a source that fits what they are looking for, you simply reply to the reporter with the relevant information.

FORBES: How You Can Get Some Serious Press For Your New Business

Should Twitter defend a person who disregards a bad law, the way a newspaper might previously have protected a source?

FORBES: Twitter Would Give User Details To The Authorities, Possibly in Giggs' Case

As a result, foreign customers have become a source of feedback in their own right.

ECONOMIST: The complications of clustering