The soccer star signed autographs for his fans.

signed 是动词 sign 的过去式，sign 的意思是"签名、签署"。 autographs 是 autograph 的复数形式，autograph 指"亲笔签名"，通常指名人或公众人物的签名。 signed autographs 意思是"签名"，特指名人给粉丝签名。