The football player is very well-built and excels in physical contests.

well-built 是由副词 well（好地）和形容词 built（建造的）组成的复合形容词。built 来自动词 build（建造、塑造）的过去分词形式。 well-built 字面意思是"建造得好的"，引申为"体格健壮的、身材匀称结实的"，通常用来形容肌肉发达、体格强壮的人。