Noun + 来源 / 来源 + 于 + Noun
The noun 来源 (láiyuán) means 'source' or 'origin,' identifying where something comes from. It is used for both concrete and abstract origins, such as energy sources or information sources. For example, 能量来源 means 'energy source.'
太阳能是一种重要的清洁能量来源。
Tàiyángnéng shì yì zhǒng zhòngyào de qīngjié néngliàng láiyuán.
Solar energy is an important source of clean energy.
这条消息的来源可靠吗?
Zhè tiáo xiāoxi de láiyuán kěkào ma?
Is the source of this information reliable?
网络已经成为人们获取信息的主要来源。
Wǎngluò yǐjīng chéngwéi rénmen huòqǔ xìnxī de zhǔyào láiyuán.
The internet has become people's main source of information.