Over 40 per cent of adults use television as their major source of information about the arts.

40以上的成年人把电视作为他们获取艺术信息的主要途径。

Renewable sources of energy must be used.

必须利用可再生的能源。

Tourism, which is a major source of income for the city, may be seriously affected.

作为该市主要收入来源的旅游业可能会受到严重影响。

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

军方称这艘船当时正高速向南行进。

Carson (2000) made extensive use of secondary data sources.

卡森（2000年）广泛引用了二手资料来源。

This gave me a clue as to the source of the problem.

这件事给我提供了找出问题根源的线索。

Reactions to ointments are a common source of skin problems.

对药膏过敏是皮肤病的一个普遍原因。

the source of the Tiber.

台伯河的源头。

Together they travel the world, sourcing clothes for the small, privately owned company.

他们一起走遍世界各地，为那家小私营公司寻找服装货源。