One of those chemical forces is anabolism.

其中一种化学力量是合成代谢。

Chemical forces between the amino acids cause these long stringy molecules to fold up into unique, three-dimensional structures.

氨基酸之间的化学作用力使这些长链状分子折叠成独特的三维结构。

For instance, a series of towering, super-volcanic eruptions could fill the atmosphere with toxic chemicals, forcing humanity to vacate the surface of Earth.

比方说，高耸的超级火山接二连三地爆发可能会导致大气中充满有毒化学物质，迫使人类从地球表面撤离。