重大爭議和次要爭議是與美國鐵路勞工法相關的術語，指的是鐵路工會與雇主之間的爭議。
重大糾紛，譯為“主要糾紛”或“重大糾紛”，根據《鐵路勞動法》，是指涉及勞動者基本工作條件的糾紛，通常會導致新的集體合同或原合同的變更。
major dispute：“under the railway labor act, a disagreement about basic working conditions,often resulting in a new collective-bargaining agreement or a change in the existing agreement.”
另一方面，輕微爭議是“輕微爭議”，僅指與集體協議解釋有關的非實質性爭議。 根據《鐵路勞動法》，重大糾紛和小糾紛均應進行強制仲裁。
minor dispute：“under the railway labor act, a disagreement about basic working conditions,of- ten resulting in a new collective-bargaining agreement or a change in the existing agreement.”
參考雙語例句：
if there is any major dispute about this, would members please refer to paragraph 46 of the last report of the legislative council bills committee where it says that in the opinion of the legal adviser of the legislative council, since other provisions in the basic law h**e stated the circumstances under which the office of the chief executive falls vacant, so it would be fine even if clause 4 does not exist.
如就此議題有任何重大爭議，請參閱法案委員會《立法會審議法案》最後報告第46段，其中指出法律顧問（即立法會法律顧問）認為，由於《基本法》對行政長官職位的空缺另有條文， 即使第 4 條不存在也沒關係，並且可能不會出現這些爭議。
the police state that the dispute was minor and was settled immediately, whereas some on the local ppp side claim it was serious and led to bitter reactions from the police during the rest of the rally.
*表示爭議很小，立即得到解決，而印度人民黨的一些當地成員則聲稱爭議嚴重，並在集會的剩餘時間裡引起了強烈反應。
*：譯本。