If two or more things differ, they are unlike each other in some way. 不同
verb [vi. 不及物动词] 不同于；意见有分歧
The story he told police differed from the one he told his mother. 他告诉警察的话和告诉他母亲的不同。
dif(分开)+fer(带来)→分别带来→有区别
The story he told police differed from the one he told his mother. 他告诉警察的话和告诉他母亲的不同。