Acids produce positively chargedhydrogen atoms when dissolved in water.
酸在水中溶解时可生成带正电荷的氢原子。
2
Sea spray – and, therefore, sea air – is full of negative hydrogen ions, charged particles that neutralise damaging free radicals (positive ions) and improve our ability to absorb oxygen.
大海溅起浪花，因而使海洋空气中富含负氢离子，抵消自由基（阳离子）带电粒子，增强我们的吸氧能力。
3
Traditional fuel cells work by using a catalytic material to oxidise a fuel, such as hydrogen, turning it into a positively charged ion and a negative electron.