太阳向点

例句：

1. 1. The sun's gravitational pull is what keeps the planets in their orbits.
   太阳的引力作用使行星保持在轨道上。
2. 2. The sun's energy is released through nuclear reactions.
   太阳的能量是通过核反应释放的。
3. 3. The sun's heat is essential for life on Earth.
   太阳的热量对地球上的生命至关重要。