1. obtain: vt. get through effort （经过一番努力后）获得[C] to obtain one’s degree to obtain support
2. source: cn.（河水的）源头；（知识，消息等的）来源We’ll have to find a new source of income.
A newspaper gets news from many sources.
[S] origin: ucn. 出身，血统；（风俗，文明等的）来源，起源 The origin of the custom is unknown.
Ancient Greece is called the origin of western civilization.
* Though sometimes the word “origin” is used in its plural form, it has the singular meaning.
He is a person of British origin, / He is British by birth, but now he is an American citizen. (He may be born inFrance.)
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