Definition
When an issue like a disagreement persists over an extended period without resolution, it is said to rumble on.
持續不止（未解決）
The debate has been rumbling on for months with no signs of resolution, which is quite frustrating.
這場辯論已經持續了幾個月，沒有解決的跡象，這非常令人沮喪。
Despite both parties wanting to reach an agreement, the dispute continues to rumble on.
儘管雙方都希望達成協議，但爭議仍在繼續。
The discussion about environmental policies has been rumbling on through several sessions in the parliament.
關於環境政策的討論在議會中已經持續了幾個會期。