Yet a new study suggests that even if the jaws and teeth of fossilised creatures look as if they are built to function in a given way, it does not mean that they actually did so.
但是一项新的研究提出了这样一种可能性：虽然生物化石的颌骨和牙齿看起来似乎是按照事先设计好的方式发挥功能，但是这并不代表他们实际如此。
Cocconi and Morrison guessed that the aliens would choose a frequency that would mean something to creatures who know math and chemistry.
Cocconi和Morrison猜测外星人会选择对于拥有数学和化学知识的生物有意义的频率。
We all are creatures of habit and Estonia’s experience shows that good and convinient e-services alone do not mean that they are used.
我们都是拥有习惯的生物，爱沙尼亚的经验充分显示：仅仅拥有优质方便电子服务，并不意味着这些服务就能得到人们的应用。
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