provide a clue的用法和樣例：
例句
- Postmarks can sometimes provide a clue about where the hold-up occurred.
有時郵戳能對郵件在哪裡發生停頓提供線索。 - Life as we know it probably could not evolve on Titan, but an analysis of the organic chemical cycles on this moon could provide clues to how life emerged in Earth's early history.
我們所知的生命形式大概無法在土衛六上演化，但是分析其上的有機化合物循環，可以為生命如何由地球早期歷史中浮現提供線索。
