frame pitch

例句：

1. 1. The architect designed the building with a unique frame.
   建筑师设计了一座具有独特框架的建筑。
2. 2. The car has a sturdy frame that can withstand impacts.
   这辆车有一个坚固的框架，可以承受冲击。
3. 3. The new model features a sleek frame and improved safety features.
   新款模型拥有流线型的框架和改进的安全特性。