1. When I was only eighteen months old, I started gym classes. At ten, I explored doing gym exercises off the diving board at the pool.
    我18个月大的时候便开始接受体操训练。十岁时我便在游泳池的跳板上练体操。

2. I usually work out in the school gym.
    我通常在学校的健身房里练习.