collaterally
旁系地(法律术语)
并行地(法律术语)
例句
This spreads an individual's genes collaterally, rather than directly, but is otherwise similar to his helping his own offspring.
这种利他主义是通过一个人的基因间接传播的,而不是直接的,但是另一方面也就像一个人会无私地帮助自己的孩子一样。