Dentists recommend cutting down on sugary or starchy foods between meals as they give bacteria fuel to produce acids that decay teeth.
牙医们建议两餐之间少吃含糖或淀粉的食物,因为这相当于给细菌提供燃料,让它们产生蛀坏牙齿的酸。
3
Biodiesel fuel, as a renewable energy and pro-environmental energy, can be produced by the transesterification reaction of vegetable oils or fatty acids with short chain alcohols.