比喻有隐藏的人才hidden talents(plural); crouching dragons and hidden tigers

• 他唱道：“高楼万丈平地起，盘龙卧虎高山顶，边区的太阳红又红，咱们的领袖毛泽东……”。

  He sang, "Towers rise tall from the plains; hidden talents lie on the hilltops. The sun in the borders is redder than red – our leader Mao Zedong...".