subject of much debate

基本解释

The mechanism underlying a migraine has been the subject of much debate over the years.
偏頭痛到底由什麽樣的原因引發？ ——這個話題多年來被反複地討論著。
In recent times, such appointments have been the subject of much debate, since they represent the migration of jobs from the USA to India.
最近，這樣的約定已經成了引起衆多爭議的話題，因爲它象征著工作由美國曏印度的轉移。
The origins of these gullies have been the subject of much debate; they could have been formed by flowing water, liquid carbon dioxide or dry granular flows.
這些溝渠是如何形成的一直備受爭議，它們可能是由流水或液態二氧化碳侵蝕沖擊而成，也可能是由乾燥的礫石流侵蝕而成。

Management courses at business schools have always been the subject of much debate and discussion.
FORBES: Will Wall Street's Shortcomings Redefine The MBA Curriculum?
Bonuses have been the subject of much debate, rebuke, and regulation in recent days.
FORBES: Executive Bonuses And Corporate Responsibility
Exactly how that process happens is the subject of much debate and study and, of course, expensive consulting fees.
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