不受影响英文

A is not influenced by B, A is not altered by B.这里用被动语态最适合不过了，A做主语，表达“不受”这个意思。influence 影响 alter 改变希望我的答案能令你满意。

Let things happen, not affected by the event

A is independent of B.A does not vary with B.自己翻译的，很标准的（我可是接受英文教学的），希望答案对你有用。

A from B the effects of, A with B does not change

keep sb from doing sth/sth 是阻止某人做某事，其中from 不能省。其它如：stop。。。from，prevent。。。from都可以省略。