aciding

例句：

1. 1. The food was very acidic, making it difficult to eat.
   这食物非常酸，很难吃。
2. 2. Acidity is a chemical property of a substance that makes it sour or bitter.
   酸度是物质的一种化学属性，使其变得酸或苦。
3. 3. The vinegar in the recipe needs to be adjusted to the right acidity level.
   食谱中的醋需要调整到正确的酸度水平。