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- A fifth galactic source (unidentified), just above the center of the galactic plane, is intriguing because it is a variable source and has no clear counterpart at other wavelengths. 排在第五名的恰好位于银河盘面中心上方的星系伽马源（未命名）显得很诡异，因为它是在一个在其他波段没有清晰对应物的变伽马源。
- The news comes from a reliable source. 这消息来自可靠的来源。
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
- The sun is the ultimate source of energy. 太阳是能量的最基本来源。
- A source of irritation or annoyance. 令人生气的事或者引起烦恼之事
- The groundwork or source of something. 基础，根源某事物的基础工作或根源
- Where is the source of the Rhine? 莱茵河发源于何处？
- He's been a source of discord and worry. 他成为不和和烦恼的根源。
- A source of harassment, annoyance, or pain. 使人痛苦的东西骚扰，烦恼或痛苦的来源
- Is the water polluted at source or further downstream? 河水是在源头还是在流出之後受到污染的？
- Anhui BBCA & Galactic Lactic Acid Co., Ltd. 安徽丰原格拉特乳酸有限公司
- Hard work is the ultimate source of success. 努力工作是成功之本。
- The proof came from a plenteous source. 证据来自丰富的渠道。
- His passion was for galactic history. 他对银河历史情有独钟。
- Do you know the source of Amazon River? 你知道亚马逊河的源头吗?
- What are quasars and active galactic nuclei? 甚麽是类星体和活跃星系核？
- He is a bit coy when ask about the source of his income. 问起他收入的来源，他就有些吞吞吐吐。
- galactic source 银河源
- Galactic nebulas are masses of diffuse material within our galaxy. 银河星云是我们星系中的一团团弥散物。
