radiant point

例句：

1. 1.The sun is a radiant source of heat and light.
   太阳是热和光的一个灿烂来源。
2. 2. The diamond is radiant with brilliance.
   这颗钻石闪耀着光辉。
3. 3.The room was radiant with the warmth of the fire.
   房间充满了火的温暖。