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sth curdles
curdle 作不及物动词时，主语通常是牛奶、蛋液等液体，表示自发地凝结或变酸。
The milk curdled because I forgot to put it in the fridge.
牛奶凝结了，因为我忘了把它放进冰箱。
（使）凝结；（使）凝固
先理解核心含义，再看它在真实句子里的用法。
（使）凝结；（使）凝固
to become thick or solid, or to make a liquid become thick or solid, especially milk forming curds
The milk curdled because I forgot to put it in the fridge.
牛奶凝结了，因为我忘了把它放进冰箱。
常指牛奶等变稠结成块
形成凝块而不再流动顺畅；使形成这样的凝块。(通常指牛奶)
To form curds so that it no longer flows smoothly; to cause to form such curds. (usually said of milk)
凝结或凝固；使凝结,如通过冷却。(比喻血液)
To clot or coagulate; to cause to congeal, such as through cold. (metaphorically of blood)
使液体变质并结块,不再流动顺畅。
To cause a liquid to spoil and form clumps so that it no longer flows smoothly.
curdle
Base
原形
curdles
3rd person
第三人称单数
curdling
-ing
现在分词
curdled
Past
过去式
curdled
Past participle
过去分词
Milk curdles when it is left in a warm place.
牛奶放在温暖的地方会凝结。
The sauce is curdling in the pan.
酱汁正在锅里凝结。
The cream has curdled in the coffee.
奶油已经在咖啡里凝结了。
规则动词。curdle 常指牛奶、蛋液等因变质而凝结成块，也可表示使液体凝固。
The milk curdled after being left on the table overnight.
牛奶在桌上放了一夜后凝结了。
Add a few drops of lemon juice to curdle the cream for the dessert.
加几滴柠檬汁，让甜点用的奶油凝结。
If you boil the sauce too hard, it may curdle and look lumpy.
如果你把酱汁煮得太猛，它可能会凝结并变得结块。
curdle 作不及物动词时，主语通常是牛奶、蛋液等液体，表示自发地凝结或变酸。
The milk curdled because I forgot to put it in the fridge.
牛奶凝结了，因为我忘了把它放进冰箱。
curdle 作及物动词时，表示“使……凝结”，常用于描述加入酸、热等因素导致的变化。
The acid in the lemon juice curdled the cream.
柠檬汁中的酸使奶油凝结了。
curdle into 后接结果，表示凝结成某种状态或物质。
The mixture curdled into a thick mass.
混合物凝结成了浓稠的一团。
Not this
The milk became curdle.
Use this
The milk curdled.
curdle 是动词，本身就表示“变酸凝结”的过程，不能与 become 连用再接原形。应直接用过去式 curdled 作谓语。
Not this
The milk was curdled when I opened the fridge.
Use this
The milk had curdled when I opened the fridge.
curdle 作不及物动词表示自行变质、凝结时，不能用被动语态；被动语态隐含“被人为使凝结”之意。此处指牛奶自己变坏，应用主动语态 had curdled。
Not this
I saw curdle in the milk.
Use this
I saw curds in the milk.
curdle 是动词，不能当作名词表示凝块。牛奶中的凝块名词是 curd（常用复数 curds），也可用 curdled milk 表示“已凝结的牛奶”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
牛奶凝结变酸
If you leave milk out in the heat, it quickly curdles.
如果你把牛奶放在高温下，它很快就会凝结变酸。
使酱汁凝结
Adding lemon juice will curdle the sauce.
加入柠檬汁会使酱汁凝结。
（因恐惧而）血液凝固
The terrible scream made my blood curdle.
那可怕的尖叫声吓得我血液都凝固了。
凝结成块
The mixture curdled into lumps and had to be thrown away.
混合物凝结成块，只好扔掉了。
令某人毛骨悚然，使某人心惊胆战
The terrifying story curdled the children's blood.
那个恐怖故事让孩子们毛骨悚然。
使某人极度恐惧，使某人不寒而栗
The sound of the howling wind made my blood curdle.
呼啸的风声让我不寒而栗。
Use curdle naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
curd（凝乳）加上动作后缀，联想牛奶结成块、变酸，就是curdle凝结变质。
语域：neutral 常见场景：烹饪、食品保存、日常描述 通常用于描述液体（如牛奶、奶油、蛋液）凝结或变酸；日常口语和书面语都可用，没有明显的正式或非正式倾向。比较常见于烹饪或食物变质的场景。
按所给读音，curdle 与 hurdle、girdle 押韵（重读元音及后面的 /dl/ 相同）。cuddle、puddle、middle、fiddle 拼写都以 -dle 结尾，但元音不同（/ʌ/ 或 /ɪ/），并不押韵。
Dictionary facts from ECDICT, WIKTIONARY.