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1·He refused to name his sources.

他拒绝说出消息的来源。《牛津词典》

2·Nuts and seeds are good sources of vitamin E.

坚果和种子是维生素E的良好来源。《柯林斯英汉双解大词典》

3·If you take text from other sources, place it in quotes.

引用其他来源的资料要放在引号里。《牛津词典》

4·There are alternative sources of nutrition to animal meat.

有能替代动物肉类的其他营养来源。《柯林斯英汉双解大词典》

5·Military sources say the boat was heading south at high speed.

军方的消息来源说船正向南方快速驶去。《柯林斯英汉双解大词典》

6·The document was a composite of information from various sources.

这份文件是不同来源信息的综合。《牛津词典》

7·He has carried out extensive research into renewable energy sources.

他已经对再生能源进行了广泛研究。《牛津词典》

8·They believed ancient Greece and Rome were vital sources of learning.

他们认为古希腊和古罗马是至关重要的知识来源。《柯林斯英汉双解大词典》

9·We should conserve oil and gas by making full use of other energy sources.

我们应该通过充分利用其他能源节约石油和天然气。《柯林斯英汉双解大词典》

10·Oil industry sources say that Marathon Oil Company has struck oil in Syria.

石油业消息人士称马拉松石油公司在叙利亚发现了石油。《柯林斯英汉双解大词典》

来源

1·Nuts and seeds are good sources of vitamin E.

坚果和种子是维生素E的良好来源。《柯林斯英汉双解大词典》

2·There are alternative sources of nutrition to animal meat.

有能替代动物肉类的其他营养来源。《柯林斯英汉双解大词典》

3·The document was a composite of information from various sources.

这份文件是不同来源信息的综合。《牛津词典》

4·They believed ancient Greece and Rome were vital sources of learning.

他们认为古希腊和古罗马是至关重要的知识来源。《柯林斯英汉双解大词典》

5·You should usually consult different types of sources.

你通常应当查阅不同种类的来源。

起源

1·By contrast, free software culture has two sources.

相反，自由软件文化有两个起源。

2·We're unaware of the evolutionary sources of a lot of behavior.

很多行为的进化起源我们都不知道。

3·This paper deals with the sources of the English vocabulary so as to help learners grasp the features of the English words and thus improve their English much more quickly.

了解英语词汇的起源，掌握英语词汇的特点，对于克服学习词汇的困难提高学习效率，有着非常重要的意义。

4·In studying the source of state laws, it should be clearly pointed out that the common laws are one of the important sources in law formulation.

在我们研究国家制定法的起源时，明确指出习惯法是制定法的重要起源之一。

(1)sources of information信息来源

(1)renewable energy sources可再生能源；可更新的能源

(1)informed sources消息灵通人士

(1)oil sources油源

(1)alternative energy sources替代能源

(1)sources of data数据来源