常见例句双语例句As we age this gradually diminishes to just the bones of the spine (vertebrae), breastbone (sternum), ribs, pelvis and small parts of the upper arm and leg.随着年龄的增长，脊椎, 胸骨, 肋骨,骨盆以及四肢的骨骼都会缩小. 返回 breastbone sternum