inner arc

例句：

1. 1. The inner arc of the planet is a crucial factor in its rotation.
   行星的内弧是其旋转的关键因素。
2. 2. The artist's inner arc was reflected in his brushstrokes.
   艺术家的内心弧线在他的笔触中得到了反映。
3. 3. The team's performance was influenced by their inner arc.
   团队的表现受到了他们内心弧线的影响。