名词
中文翻译：麻烦来源
同义词：
['cause of trouble', 'source of difficulty例句：1. The new policy isthe source of many complaints.（新政策是许多抱怨的源头。）2. The accident was thesource of much controversy.（事故是很多争议的源头。）3. The problem is the source ofall our difficulties.（问题是我们所有困难的源头。）']
例句：
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1. The new policy isthe source of many complaints.
新政策是许多抱怨的源头。
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2. The accident was thesource of much controversy.
事故是很多争议的源头。
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3. The problem is the source ofall our difficulties.
问题是我们所有困难的源头。