related:connected with sb/sth in some way 相关的,有联系的
relevant:closely connected with the subject you are discussing or the situation you are thinking about 紧密相关的,切题的
relevant more close and direct than related.
related其他意思：1in the same family 2belong to the same group
relavant其他意思：having ideas that are valuable and useful to people in their lives and work有价值的,有意义的