没有任何一种行为——哪怕它再微不足道，不会造成一系列的后果；如同没有一根头发——哪怕它再纤细微小，不能映下它的影子。

However trivial, but has its train of consequences, as there is no hair so small but casts its shadow.

youdao

微小纤细的骨骼通常在石化前就被食腐肉的动物拆散了，或者被风化作用破坏掉了。

The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized.

youdao