Definition
This idiom is used to express that something is certain to happen at some point in the near future.
指早晚的事
If they continue to ignore environmental issues, it's only a matter of time before an environmental disaster occurs.
如果他們繼續忽視環境問題，環境災難的發生只是時間早晚的問題。
If this company does not improve its product quality, it's just a matter of time before it goes bankrupt.
如果這家公司不提高產品質量，破產只是時間問題。
With the continuous advancement of technology, it is only a matter of time before self-driving cars become widespread.
隨著技術的不斷進步，自駕車的普及只是時間問題。