0 the place something comes from or starts at, or the cause of something -- 來源，出處；發源地；起源，根源
Oranges are a good source of vitamin C. 橙富含維生素C。
Experts are trying to track down the source of the contamination in the water supply. 專家們正試圖找到水源中污染物的來源。
We walked up the river to its source in the hills. 我們沿河上溯而行，一直走到其在山中的源頭。
Money is often a source of tension and disagreements in young married couples. 金錢往往是年輕夫婦關係緊張不和的起因。
The journalist refused to reveal her sources (= say who had given the information to her). 記者拒絕透露消息的來源。
According to government sources (= people in the government) many MPs are worried about this issue. 政府方面透露，很多下議院議員對這個問題表示擔憂。
According to congressional sources (= people who work in Congress) many Representatives are worried about this issue. 國會方面透露，很多眾議員對這個問題表示擔憂。
Always acknowledge your sources (= say which books you have used) at the end of a paper. 論文的末尾務必列出參考書目。
1 to get something from a particular place -- 從（某地）獲取
Where possible the produce used in our restaurant is sourced locally. 我們餐廳盡可能用當地出產的農產品。
His main source of work had dried up, leaving him short of money.
Engineers are endeavouring to locate the source of the problem.
He's established himself as a dependable source of information.
Therefore, we investigate the effect of pension fund governance on the two sources of value creation separately.
Data have been collected using a variety of sources, including parent interviews, teacher assessments, child interviews, standardized psychometric tests, medical and official records.
However, no large stockpiles of batteries or other obvious sources of heavy-metal contamination were found.
