primary source

基本解釋

A little more than half of those companies are run by workers with another primary source of income.
這其中，略微超過(guò)半數(shù)的公司，都是由有另一主要收入來(lái)源的人來(lái)開(kāi)辦的。
Academic journals tend to be the primary source of news for science reporters because that is where researchers usually publish their findings.
學(xué)術(shù)雜志通常是科學(xué)記者的主要新聞來(lái)源，因?yàn)榭茖W(xué)家通常是在這些雜志上發(fā)表他們的發(fā)現(xiàn)。
Between budget cutbacks, layoffs and reductions in benefits or increases in hours, clearly our paychecks are not our primary source of satisfaction.
削減預(yù)算，減少利益或者被迫增加工作時(shí)間，很明顯，我們的收入并不是讓我們滿意的主要源泉。

That's not the only place but that's a primary source of it.
這不是唯一的出處,但是最主要的來(lái)源
耶魯公開(kāi)課 - 關(guān)于食物的心理學(xué)、生物學(xué)和政治學(xué)課程節(jié)選
You see the lactose of course from milk, and then when you get down to the cellulose, and we're talking about starches and then fiber gets involved in here too, then cereals and vegetables become the primary source of these.
你們知道乳糖來(lái)自于乳類,當(dāng)你研究纖維素的時(shí)候,以及我們?cè)谶@里所說(shuō)的淀粉和纖維,他們最主要的來(lái)源是谷類和蔬菜
耶魯公開(kāi)課 - 關(guān)于食物的心理學(xué)、生物學(xué)和政治學(xué)課程節(jié)選

This is probably your primary source of income, so make the most of it.
FORBES: Earning, Spending, And Saving: The Building Blocks Of Personal Finance
The book focused on access to alternative asset classes as the primary source of endowment alpha.
FORBES: John Bogle Didn't Have All The Data