Instead, sulfur is usually added to the rubber, to make its molecular bonds stronger.

相反，硫磺通常都会被添加到橡胶中，使其分子结合的更加紧密。

Take even the sexual act — the most intimate merger given to organisms.

就算以性活动来说——对生物而言最紧密的结合。

But one of the consequences of an evolutionary faith might be precisely a closer integration between the is and the ought.

进化信仰的一个结果可能是“实然”与“应然”之间更紧密的结合。

So if the dark energy is building up in space, first it's going to pull apart things that are like the most weakly bound.

因此， 如果暗能量在空间中逐渐积累，首先它将拆散那些结合最不紧密的天体。