source
source
noun
at source
noun
- a place, person, or thing from which something comes or can be obtained
鲭是一种很好的鱼油来源
mackerel is a good source of fish oil.
■a spring or fountain head from which a river or stream issues
（河流或小溪的）源头
the source of the Nile.
尼罗河的源头。
■a person who provides information
提供信息的人
military sources announced a reduction in strategic nuclear weapons.
军方消息人士宣布减少战略核武器。
■a book or document used to provide evidence in research
出处，原始资料
■(technical)a body or process by which energy or a particular component enters a system
(技)源。 sink的反义词
■(Electronics)a part of a field-effect transistor from which carriers flow into the interelectrode channel
(电子)源极；电源
- [withobj.](常作be sourced)obtain from a particular source
从特定来源获得
each type of coffee is sourced from one country.
每一种咖啡都来自某一个国家。
■find out where (something) can be obtained
找出…的来源
she was called upon to source a supply of carpet.
她被要求寻找地毯供应的来源。
at source
- at the point of origin or issue
在源头
reduction of pollution at source.
在源头上减少污染。
■used to show that a sum is deducted from earnings or other payments before they are made
（从工资或其他付款中）直接扣除
your pension contribution will be deducted at source.
你的养老金部分将被直接扣除。
- late Middle English: from Old French sours(e), past participle of sourdre 'to rise', from Latin surgere
考试词汇表
