aluminum pole的用法和樣例：
例句
- It's very important to choose the proper long flexible pole to compete in this event.
選擇合適的撐桿進行比賽非常重要。 - Most poles today are made from fiberglass or carbon fiber to get a light weight pole that provides springiness to lift athletes up higher.
現在大多數的撐桿都是用玻璃纖維或碳纖維製成的，不但很輕，而且彈性更好。
