高清（晰度）電視；高分辨率電視
HDTV is a digital television system that gives a much clearer picture than traditional television systems. HDTV is an abbreviation for (縮略=) 'high definition television'.
例句
HDTV is especially useful if there are a lot of special effects.
有很多特效的時候，高清電視就格外有用了。