But there could be any number of paired oxygen atoms involved.

但可能涉及任意数量的成对氧原子。

The number of pairs grows quadratically, meaning it's proportional to the square of the number of people in the group.

对的数量呈二次方增长，这意味着它与组中人数的平方成正比。

The thoracic aorta has a number of paired blood vessels that branch off like back roads off of a highway.

胸主动脉有许多成对的血管分支，就像高速公路分支的小道一样。

But we also know that the number of integers is infinite, and that only a finite number of pairs of integers ever have been or ever will be thought of by human beings.

但我们也知道整数的数量是无限的，人类曾经或将来会想到的整数对的数量是有限的。