[译] 他们彼此几乎完全不受对方作品的影响。
[误] They remained almost entirely unaffected with each other's writings.

[正] They remained almost entirely unaffected by each other's writings.
[注] unaffected 虽是形容词，但表示动作性的含义比较多，故其常见搭配结构为 be unaffected by...（不受……的影响），而不使用其他介词代替 by。