Avoid acidic foods and beverages and carbonated drinks.

避免酸性食物和饮料，不要喝加糖饮料。

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。

She prefers acidic foods like pickles and citrus fruits.

她喜欢酸的食物，比如泡菜和柑橘类水果。