BRE

例句：

1. 1.呼吸
   尤指在水下
2. 1. The fish needs a balanced diet with adequate oxygen and carbon dioxide exchange.
   这条鱼需要均衡的饮食，有足够的氧气和二氧化碳交换。
3. 2. The plant's photosynthesis requires an optimal balance of oxygen and carbon dioxide exchange.
   植物的光合作用需要氧气和二氧化碳交换的最优平衡。
4. 3. The economic balance of the market is determined by the supply and demand of goods and services.
   市场的经济平衡是由商品和服务的供给和需求决定的。