In addition, the kidney controls the composition of your body of many important ions, sodium bicarbonate which is important in pH balance, potassium.

此外肾脏还能控制,体内很多重要离子的浓度,例如碳酸氢钠,它对于酸碱平衡十分重要,还有钾离子

耶鲁公开课 - 生物医学工程探索课程节选

There's a lot of body work involved to balance the, kind of uniting the body, mind and spirit, yeah.

这需要很多身体活动，来平衡，把身体、精神、心灵联结在一起，是的。

瑜伽的魅力 - SpeakingMax英语口语达人