由于锻炼身体可以使骨骼 、 肌肉 、 心脏和肺活量增强.B Just as exercise makes the bones, muscles, heart, and lungs stronger.长期 的游泳锻炼, 可以使呼吸深度增加, 肺活量提高.Long - term swimming exercise, can increase the depth of breathing, capacity to improve.我们的骨结构...
The problem is too elaborate.问题太复杂。You understand the situation; I needn't elaborate any further.你对情况是了解的, 我不必再进一步详谈了。A spokesman declined to elaborate on a statement released late yesterday...发言人拒绝对昨天晚些时候发表的声明详加说明...