食物变坏了,"发霉","烂掉","变酸",各种变"坏"你们知道英语怎么说吗?

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食物变坏了,"发霉","烂掉","变酸",各种变"坏"你们知道英语怎么说吗?
In summer ,food is really easy to go bad ,apart from “bad”,do you know any other words you could say?
夏天太热食物很容易变坏,各种变坏的英语要怎么说呢
1.变陈,不新鲜 stale
2.发霉 mouldy
3.过期 expire
4. 腐烂 rotten
5. 变酸 sour
1.情况一
00:16
例句:Mummy,this biscuit has gone stale.
单词: stale:变陈,不新鲜
2.情况二
00:27
例句:mummy,we shouldn't eat this bread,because it's mouldy.
单词: mouldy:发霉
3.情况三
00:38
例句:mummy,I'm gonna have some yogurt now ,hmm,I checked the day,this has expired by two weeks.
单词:expire:过期
4.情况四
00:58
例句:This banana is rotten.
单词:rotten:腐烂
5. 情况五
01:16
例句:The hot weather sours the milk.
单词:sour:变酸