The herb has been used for centuries to curdle milk.

这种香草被用来凝乳已有几个世纪。

《柯林斯英汉双解大词典》

The fermentation of milk causes it to curdle.

牛奶发酵会凝结起来。

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It's easy to tell when your milk has gone bad, the smell, the curdle, the date on top of the bottle.

牛奶的气味，凝结状态和瓶口上标注的日期可以很容易地告诉你牛奶是否变坏了。

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To make it, fresh milk from grass or hay-fed cows within a 20km radius is poured raw into a copper pot and heated until it begins to curdle.

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