The words themselves offer the clue as to when best to use them.(这些词本身就为我们提供了何时可以恰当使用它们的线索。)
Geneticists in Canada have discovered a clue to the puzzle of why our cells get old and die.(加拿大的遗传学家已经发现了解开我们细胞衰老死亡之迷的线索。)
How a man shaves may be a telling clue to his age.(一个男人如何刮脸也许会暴露他的实际年龄。)
He happened on a clue to the mystery.(他偶然发现了那秘密的线索。)
The first real clue came when archaeologists discovered that skeletons of higher-status individuals tended to be several centimeters taller than those of people of lower states.(考古学家发现，地位较高的人的骨架往往比地位较低的人高几厘米，这是第一个真正的线索。)
We ended up in like the business part of London and we had no clue where we were.(我们走到了伦敦的商业区，我们完全不知道我们在哪儿。)
Herpin offered the only clue to his condition.(海尔宾提供了他病情的唯一线索。)
The only clue he has is a fossil.(他唯一的线索就是一块化石。)
This experiment certainly does not definitely prove that girls start to reason before boys, but it provides a clue that scientists would like to study more carefully.(这个实验当然不能肯定地证明女孩比男孩更早开始懂道理，但它提供了一条让科学家们想要更仔细研究的线索。)
She spent hours poring over the text, searching for a clue that might help solve the case.(她花了几个小时仔细研读课文，以寻找可能有助于破案的线索。)
