Later in the course, we will cover elliptical orbits, but now let's exclusively talk about circular orbits.
我们在之后的课程还会讲到椭圆轨道，不过现在我们只讲，圆轨道。
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A playful circular opening in the cedar ceiling creates a view of the sky while filtering geometric patterns of natural light that evolve over the course of the day onto the patio below.