Many professional athletes are now considered high-profile celebrities because of their extensive media coverage.

high 表示"高的"，这里指"程度高、显著"。 profile 本义是"侧面轮廓"，引申为"公众形象、曝光度"。 high-profile 组合起来表示"高调的、引人注目的"，形容经常出现在公众视野中、受到媒体广泛关注的人或事物。