And that's makes the bread sour.

这让面包变酸了。

If the blood becoming really acidic can have major effects throughout the body.

如果血液变酸，会对全身造成影响。

Well, yogurt is soured milk, so it's difficult to say at which point it sours, because it's already sour.

嗯，酸奶就是酸了的牛奶，所以很难判断它是什么时候变酸的，因为它已经酸了。

For example, one of the most widely used preservatives is citric acid, the same stuff that makes lemons sour and oranges tangy.

例如，最广泛使用的防腐剂之一是柠檬酸，这种物质使柠檬变酸，橘子变酸。

When these bacteria ferment the milk and make it acidic enough, the structure of those casein proteins starts to change.

当这些菌使得牛奶发变酸时，这些酪蛋白子结构会开始变化。

Or, " This cream has gone sour" .

或者，“这奶油变酸了”。

Guilt made the coffee taste sour.

疚让咖啡变酸了。

The milk has gone sour, but initially I don't know what it is.

牛奶变酸了，但起初不知道那是什么。

Something inside me had gone sour.

心的某些东西变酸了。

It's gone sour, and you might as well throw out this bread, too.

它变酸了，你还不如把这个面包也扔掉。

" As soon as a priest comes into my house the cream turns sour" !

“牧师一， 奶油就变酸了” ！

Soy cake and soybean milk were his food, but the soybean milk was going sour.

食物是豆饼和豆浆。豆浆变酸了。

Well, if you put milk out in the sun, eventually the milk will sour.

好吧，如果你把牛奶放在阳光下，最终牛奶会变酸。

They will remain in this condition three weeks or a month without souring, and secure from frost.

它们将保持这种状态三周或一个月而不会变酸，并且不会霜冻。

When you have a food or a drink that is not eaten quickly enough, sometimes it will go sour.

当你吃的食物或饮料吃得不够快时，有时它会变酸。

It's really frustrating for me when food or when drinks go bad, that means the milk is sour.

当食物或饮料变质时， 真的很沮丧，这意味着牛奶变酸了。

This milk isn't quite sour but it would be if I left it out here for a long time.

这牛奶不太酸，但如果把它放在这里很长时间就会变酸。

One big complaint about hot coffee, for instance, is that it gets sour if it’s been sitting out for too long.

例如，对热咖啡的一大抱怨是， 如果放置时间过长， 咖啡会变酸。

They estimate a food's shelf life, that is how long the lettuce will be crisp, or how long before the milk begins to sour.

他们估计一种食物的保质期，是看生菜能脆多久，或者牛奶开始变酸前多久来判断的。

" Better not try to brew beer there now, or it would turn out sour, boy; don't you think so" ?

" 最好不要尝试现在在那里酿造啤酒， 否则会变酸， 孩子：你不这么认为吗？