ray curvature

例句：

1. 1. The ray of sunlight gently brushed against the windowpane.
   阳光的光线轻轻地拂过窗玻璃。
2. 2.The ray of light from the sun illuminated the room.
   太阳光的光线照亮了房间。
3. 3. The ray of hope is always shining brightly in our hearts.
   希望之光总是在我们心中闪耀着。