1
be mouldy
指某物已处于发霉的状态。
The bread is mouldy.
这个面包发霉了。
发霉的；有霉味的
先理解核心含义，再看它在真实句子里的用法。
发霉的；有霉味的
covered with or smelling of mold
The bread is mouldy.
这个面包发霉了。
发霉的。
Covered with mould.
显得荒废的；废弃的。
Showing signs of neglect; disused.
I found a mouldy piece of bread at the back of the cupboard.
我在橱柜后面发现了一块发霉的面包。
The cheese smelled so mouldy that we decided to throw it away.
这块奶酪闻起来都是霉味，我们决定把它扔掉。
This is the mouldiest sandwich I have ever seen.
这是我见过的最发霉的三明治。
指某物已处于发霉的状态。
The bread is mouldy.
这个面包发霉了。
作定语修饰名词，常用来形容食物、墙壁等。
We threw away the mouldy cheese.
我们扔掉了发霉的奶酪。
go 表示变成（常指不好的变化），多用于食物变坏。
The fruit in the fridge went mouldy.
冰箱里的水果发霉了。
Not this
The bread is mould.
Use this
The bread is mouldy.
mould 是名词，意为‘霉菌’；系动词 is 后需接形容词 mouldy 作表语，表示‘发霉的’。不能把名词误当形容词使用。
Not this
The bread tastes mouldily.
Use this
The bread tastes mouldy.
taste 是感官系动词，后面应接形容词 mouldy 作表语，而不是副词 mouldily。感官动词后用形容词描述主语特征，不用副词修饰动作。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
发霉；变得发霉
Don't leave the bread in the bag or it will go mouldy.
别把面包留在袋子里，否则它会发霉。
发霉的面包
He found a piece of mouldy bread at the back of the cupboard.
他在橱柜后面发现了一块发霉的面包。
霉味
The room had a damp, mouldy smell.
房间里有股潮湿的霉味。
发霉的奶酪
Some people enjoy eating mouldy cheese, but I don't.
有些人喜欢吃发霉的奶酪，但我不喜欢。
发霉的衣服
The old suitcase was full of mouldy clothes.
那个旧手提箱里满是发霉的衣服。
守旧派；老派爵士乐爱好者
He's a mouldy fig who insists that jazz ended with the 1920s.
他是个守旧派，坚称爵士乐在20世纪20年代就终结了。
Use mouldy naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 mouldy 拆成 mould（霉菌）+ y，看到食物长出的绿色霉斑就记住它是“发霉的”。
语域：neutral 常见场景：food storage、damp buildings、smell descriptions 通常用于日常描述食物、房间或物品发霉或有霉味，属于中性用词，正式与非正式场合都常见。
比较级为 mouldier，最高级为 mouldiest。
Dictionary facts from ECDICT, WIKTIONARY.