We are accustomed to think of every dynamic force operating in the mind as having the form either of a biologicaldrive or of a conflict.
我们习惯于认为每一个动力在头脑中的运作的形式，要么是一个生物性的驱力，要么是一种冲突。
2
Skyler S. Place, who headed up the study, says that the biologicaldrive behind dating — finding an optimal mate for gene promotion — gives women reason to be elusive.
这项研究的负责人Skyler S. Place认为约会的背后存在着生物学的动机——找到一个能够提高基因质量的合适对象，这给了女人难以捉摸一个理由。
3
He spells it out: all the drive, wit, love, pride, anger, hope and anxiety that characterise the species Homo sapiens are simply there to perpetuate the biological cycle.