It is important to understand the powerful economic and social forces at work behind our own actions.
重要的是要理解在我们自己的行动背后起作用的那些强大的经济和社会力量。
Lately, however, twin studies have helped lead scientists to a radical new conclusion: that nature and nurture are not the only elemental forces at work.
然而，近日的双胞胎研究帮助科学家们得出了一个全新的结论：先天和后天因素不是唯一起作用的因素。
Typically the forces at work in a situation like this include.
在此类情况下的关键方面通常包括。
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