1. Researchers have found that gold is extremely potent in neutralising dangerous bacteria such as E Coli. 研究者们发现,黄金对减少有害细菌(如大肠杆菌)的传播有较强的作用。
2. Saliva acts as a barrier, protecting the teeth by neutralising acidic foods such as oranges, and the acid produced by bacteria as they break down foods. 而唾液正像一道保护牙齿的屏障,把橘子等酸性食物以及细菌分解食物产生的酸性物质中和掉。