无论这是真正关心现实的社会问题，还是出于更返祖的观念——固有的、从生物学角度来说混血是错误的观念，我们只能推测。
Whether this was genuine concern for a real social problem or was born of a more atavistic notion that there is something inherently, biologically wrong with mixing RACES, we can only speculate.
从生物学角度来说，这种差异的演化可能是出于女性更有可能确保种族生存。
From a biological point of view, the difference has probably evolved because women are more likely to ensure the survival of the species.
无论你是出于一时热情的角度或者你完成一个课堂任务，您可以使用这些准则起草一封信给报纸或杂志的编辑寻求帮助。
Whether you're motivated by a passionate point of view or you're responding to a class assignment, you can use these guidelines to draft a letter to the editor of a newspaper or magazine.
应用推荐