covering differentiable manifold

例句：

1. 1. The new policy will covering all aspects of the issue.
   新政策将涵盖该问题的各个方面。
2. 2. The company's products are covering a wide range of markets.
   该公司的产品涵盖了广泛的市场领域。
3. 3. The meeting covered all the important issues discussed earlier.
   会议涵盖了之前讨论的所有重要议题。