音标：[sɒ:s]
n. 来源, 水源, 根源, 原始资料, 源
【计】 来源, 源程序
【医】 源
【经】 根源, 来源
在线英汉词典

source的短语、例句：

source n 1 starting-point of a river 河流的源头; 发源地
the sources of the Nile 尼罗河的发源地
Where is the source of the Rhine? 莱茵河发源於何处? 2 place from which sth comes or is obtained 来源; 出处
news from a reliable source 来源可靠的消息
a limited source of income 有限的收入来源
Is that well the source of all the cases of infection? 所有这些传染病病例都是由那口井引发的吗? 3 (esp pl 尤作复数) personor thing (esp a book, document, etc) supplying information,esp for study 提供资料的人, 原始资料（尤指书、 文件等）（尤指供研究的资料）
He cited many sources for his book. 他在书中引用了许多资料.
[attrib 作定语] source material 原始资料. 4 (idm 习语) at `source at the point of origin or beginning 在源头; 在发源地; 在开端
money taxed at source, ie before it is given to the earner 扣除税金後发放的钱
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?