1
have mucus in [body part]
mucus 通常作不可数名词；复数形式 muci/mucuses 极少使用。
During allergy season, I always have mucus in my nose.
过敏季节时，我鼻子里总会有黏液。
黏液；粘液
mucuses — plural of mucus
先理解核心含义，再看它在真实句子里的用法。
黏液；粘液
a thick slippery liquid produced by the body to protect and lubricate mucous membranes, e.g. in the nose and throat
During allergy season, I always have mucus in my nose.
过敏季节时，我鼻子里总会有黏液。
黏膜内壁分泌的滑腻液体。
A slippery secretion from the lining of the mucous membranes.
黏膜的保护性分泌物；在肠道中润滑食物通过并保护上皮细胞；在鼻子、喉咙和肺部可以阻止细菌通过上皮进入体内
protective secretion of the mucus membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium
When I have a cold, my nose produces a lot of mucus.
我感冒时，鼻子会产生很多黏液。
The doctor explained that mucus helps protect the lining of the stomach.
医生解释说，黏液有助于保护胃壁。
Some allergies can make your throat produce extra mucus, causing discomfort.
有些过敏会让喉咙产生额外的黏液，引起不适。
mucus 通常作不可数名词；复数形式 muci/mucuses 极少使用。
During allergy season, I always have mucus in my nose.
过敏季节时，我鼻子里总会有黏液。
A saline rinse can help clear mucus from your sinuses.
盐水冲洗有助于清除鼻窦里的黏液。
表示“积聚”时，build up 比 collect 更常用。
Mucus builds up in the bronchi, making it hard to breathe.
黏液在支气管内积聚，导致呼吸困难。
secrete 比 produce 更正式，常见于医学生物语境。
The nasal lining secretes mucus to trap dust and microbes.
鼻黏膜分泌黏液以捕获灰尘和微生物。
Not this
The mucus are thick.
Use this
The mucus is thick.
在一般用法中，mucus 是不可数名词，虽然以 -s 结尾但并非复数，谓语动词应用单数 is。
Not this
The mucus membrane protects the nose.
Use this
The mucous membrane protects the nose.
修饰名词 membrane 时要用形容词 mucous（粘液的），mucus 是名词，不能直接作定语。
Not this
I need to blow my mucus.
Use this
I need to blow my nose.
英语中“擤鼻涕”的固定搭配是 blow one's nose，宾语是 nose；mucus 表示鼻腔分泌的黏液，不能作 blow 的宾语。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
鼻腔粘液
Nasal mucus helps trap dust and germs.
鼻腔粘液有助于阻挡灰尘和细菌。
宫颈粘液
Cervical mucus changes during the menstrual cycle.
宫颈粘液在月经周期中会发生变化。
过量粘液
He had a cold and complained of excess mucus in his nose.
他感冒了，抱怨鼻子里有过量的粘液。
产生粘液
The respiratory tract produces mucus to protect the airways.
呼吸道产生粘液以保护气道。
浓稠的粘液
Drinking plenty of water can help thin thick mucus.
多喝水有助于稀释浓稠的粘液。
粘液积聚
Mucus build-up in the lungs can make breathing difficult.
肺部粘液积聚会使呼吸变得困难。
Use mucuses naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
mucus 读音像“缪可思”，想象感冒时鼻子里黏黏的黏液，像胶水一样粘住细菌。
语域：formal 常见场景：medical reports、biology textbooks、clinical discussions mucus 是较正式的医学/生物学用词，多用于书面或临床描述；日常口语更常说 snot。在健康科普中也会出现。
注意：复数形式有 muci 与 mucuses。
Dictionary facts from ECDICT, WIKTIONARY.