It's their main source of news.

这是他们主要的新闻来源。

Farming, the north's main source of income, has been hamstrung.

作为北方最主要的收入来源的农业也因此荒废。

Farming was their main source of income.

耕作是他们的主要收入来源。

But the main source will need to be foreign.

但主要的资金来源需要来自国外。

Their main source, messages and posts on Facebook and Whatapp.

他们的主要来源是 Facebook 和 whatsapp 上的信息和帖子。

Carbohydrates are one of your body's main sources of energy.

碳水化合物是身体的主要能源之一。

Like most predators, wolves follow their main food source.

和大多数掠食者一样，狼追寻着它们的主要食物来源。

Currently, our ocean serves as the main source of animal protein.

目前，海洋是我们主要的蛋白质来源。

The second main source of volcanoes are thought to be mantle plumes.

第二种主要的火山成因被认为是地幔热柱。

There are two main possible sources of cash, and each poses risks.

主要有两种可能的现金来源，每一种都会带来风险。

This is known to be a main source of diamonds, said Wetherall.

韦瑟拉尔说，众所周知，这是钻石的主要来源。

I believe that the main source of pollution is from the textile industries.

我认为污染的主要来源是纺织工业。

And that's the main source of uncertainty in Earth's climate sensitivity.

那便是人们对于地球气候敏感性 仍然感到不确定的成因。

I had several children, and books were our main source of entertainment.

我有几个孩子，书是我们主要的娱乐来源。

'Cause the main source of methane here on Earth, is living things, bacteria.

因为地球上甲烷的主要来源是生物，细菌。

They couldn't be the main sources of such drugs in the U.S.

不可能是美国的主要来源。”

But they are the main source of food for larger animals, like whales.

但它们却是鲸鱼等大型动物的主要食物来源。

Bali gets its water from three main sources: lakes, rivers and groundwater.

巴厘岛主要有三个水源：湖泊、河流和地下水。

In the days before electricity, candles were a main source of light for work.

在没有电的时代，蜡烛是工作时的主要光源。

Instead of using oxygen as their main source of energy, anaerobic bacteria use sulphur.

厌氧细菌不使用氧气作为它们的主要能量来源，而是依赖于硫。