1
the acidity of [sth]
表示某物的酸性，后接名词。
The acidity of the wine is high.
这款葡萄酒的酸度很高。
酸性；酸度
先理解核心含义，再看它在真实句子里的用法。
酸性；酸度
acidity
The acidity of the wine is high.
这款葡萄酒的酸度很高。
酸的性质或状态。
The quality or state of being acid.
酸性
the property of being acidic
酸味；酸涩；味道的尖锐。
Sourness; tartness; sharpness to the taste.
酸味
the taste experience when something acidic is taken into the mouth
The acidity of lemon juice makes it useful for cleaning.
柠檬汁的酸性使它可用于清洁。
Too much acidity in the soil can harm young plants.
土壤中酸性过强会伤害幼小的植物。
The wine's acidity balances the sweetness of the fruit.
这款葡萄酒的酸度平衡了水果的甜味。
表示某物的酸性，后接名词。
The acidity of the wine is high.
这款葡萄酒的酸度很高。
形容词修饰acidity，描述酸度高低。
This soil has low acidity.
这种土壤酸度低。
表示某物内部的酸性。
Acidity in the solution was measured.
测量了溶液中的酸度。
Not this
The solution is very acidity.
Use this
The solution is very acidic.
acidity 是名词，意为‘酸性’，不能用作形容词；表示‘酸性的’应该用形容词 acidic。
Not this
The substance acidities when exposed to air.
Use this
The substance becomes acidic when exposed to air.
acidity 是名词，不能用作动词；表示‘变酸’应用 become acidic 或动词 acidify。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
土壤酸性
The soil acidity increased after the rain.
雨后土壤酸性增强了。
胃酸过多
Gastric acidity can cause heartburn.
胃酸过多会引起胃灼热。
酸度水平
We measured the acidity level of the wine.
我们测量了葡萄酒的酸度水平。
高酸性
High acidity in coffee can make it taste sharp.
咖啡中的高酸性会使其口感尖锐。
低酸性
This orange juice has low acidity.
这种橙汁酸性低。
中和酸性
Antacids neutralize acidity in the stomach.
抗酸剂中和胃中的酸性。
Use acidity naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：acid（酸）加上名词后缀 -ity，就表示“酸性/酸度”。
语域：mixed 常见场景：chemistry lab、wine/food tasting、medical report acidity 比较常见于化学、食品/葡萄酒品鉴和医学等偏技术或正式的场合；日常交流中表示“酸味”时，口语里更常说 sourness。具体用词要看语境和语体。
以下 -idity 词与 acidity 押韵：重读元音均为 /ɪ/，后接 /dəti/。注意形近词 acid /ˈæsɪd/ 和 acidic /əˈsɪdɪk/ 拼写相近但读音不同，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.