1
the cleanliness of [sth]
cleanliness 通常为不可数名词，此结构表示“……的清洁”。
The cleanliness of the room was impressive.
房间的清洁程度令人印象深刻。
清洁；干净
cleanlinesses — plural of cleanliness
先理解核心含义，再看它在真实句子里的用法。
清洁；干净
the habit or practice of keeping yourself and your surroundings clean
The cleanliness of the room was impressive.
房间的清洁程度令人印象深刻。
干净或习惯性清洁的性质；良好的卫生。
The property of being cleanly, or habitually clean; good hygiene.
仪式上的纯洁。
Ritual purity.
The restaurant was praised for its cleanliness and friendly service.
这家餐厅因整洁和友好的服务而受到称赞。
Personal cleanliness is important for staying healthy.
个人清洁对保持健康很重要。
She always checks the cleanliness of the kitchen before cooking.
她做饭前总会检查厨房是否干净。
cleanliness 通常为不可数名词，此结构表示“……的清洁”。
The cleanliness of the room was impressive.
房间的清洁程度令人印象深刻。
Kitchen staff must maintain cleanliness at all times.
厨房工作人员必须时刻保持清洁。
Not this
The kitchen is very cleanliness.
Use this
The kitchen is very clean.
cleanliness 是名词，表示“清洁的状态”；要描述厨房很干净，需要用形容词 clean 作表语。
Not this
We should do cleanliness every day.
Use this
We should do the cleaning every day.
汉语“做清洁”指打扫这个动作，英语用 do the cleaning；cleanliness 指清洁的状态或习惯，不能与 do 搭配表示打扫。
Not this
Cleanliness are important for health.
Use this
Cleanliness is important for health.
cleanliness 是不可数名词，作主语时谓语动词要用单数 is。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
个人卫生；个人清洁
Personal cleanliness is important in the food industry.
个人卫生在食品行业很重要。
清洁近乎虔诚
My grandmother always said that cleanliness is next to godliness.
我祖母总说，清洁近乎虔诚。
保持清洁
Hospital staff must maintain cleanliness at all times.
医院工作人员必须时刻保持清洁。
清洁标准
The restaurant failed to meet basic cleanliness standards.
这家餐厅未能达到基本的清洁标准。
促进清洁；宣传卫生
The campaign promotes cleanliness in public spaces.
这项运动促进公共场所的清洁。
严格清洁（要求）
The laboratory requires strict cleanliness.
实验室要求严格清洁。
清洁近乎虔诚
My mother insists that cleanliness is next to godliness and makes us tidy our rooms every day.
我妈妈坚持认为清洁近乎虔诚，让我们每天整理房间。
清洁近乎圣洁（谚语，强调保持清洁是美德）。
My grandmother always says, 'Cleanliness is next to godliness,' before she starts scrubbing the kitchen.
我奶奶在开始擦洗厨房之前总说：‘清洁近乎圣洁。’
Use cleanlinesses naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
clean（干净）+ li + ness：把形容词 clean 装进名词后缀 -ness，就是“清洁、干净”的习惯。
语域：neutral 常见场景：personal hygiene、public health、housekeeping cleanliness 属于常用普通词，通常用于较正式或书面语境，多出现在谈论卫生、健康、环境或生活习惯的场合；日常口语中也可使用，但更常见于描述保持洁净的习惯或状态。
No listed word rhymes exactly with cleanliness /ˈklɛnlɪnɪs/: their stressed vowels or following consonants differ. All share the -liness spelling and first-syllable stress, but the sound of the base changes. Note that cleanliness is not pronounced like clean /kliːn/; say the first syllable as /klɛn/.
Dictionary facts from ECDICT, WIKTIONARY.