1
orifice of [body part]
of 后接表示身体部位或器官的名词。
The doctor found a blockage near the orifice of the stomach.
医生在胃的开口附近发现堵塞。
孔；口
orifices — plural of orifice
先理解核心含义，再看它在真实句子里的用法。
孔；口
an opening or hole, especially in the body, that leads into a cavity
The doctor found a blockage near the orifice of the stomach.
医生在胃的开口附近发现堵塞。
医学或解剖学用语，指身体上的开口。
A mouth or aperture, such as of a tube, pipe, etc.; an opening.
One of the natural external openings of the human or animal body.
The nurse gently examined each orifice for signs of infection.
护士轻轻检查每个孔口是否有感染迹象。
Never insert sharp objects into any bodily orifice.
切勿将尖锐物体插入身体的任何孔口。
The ear is a small orifice that needs careful cleaning.
耳朵是一个需要小心清洁的小孔口。
of 后接表示身体部位或器官的名词。
The doctor found a blockage near the orifice of the stomach.
医生在胃的开口附近发现堵塞。
常与 insert、pass 等动词连用，表示经由孔口。
The tube was inserted through a natural orifice.
管子通过一个天然孔口插入。
Not this
The doctor looked into the patient's office.
Use this
The doctor looked into the patient's orifice.
Orifice 意为“身体上的孔口”，而 office 是“办公室”，两者拼写相近但意思完全不同。此处语境需要表示身体开口，因此应使用 orifice。
Not this
The human body has many orifice.
Use this
The human body has many orifices.
Orifice 是可数名词，其复数形式为 orifices。表示多个孔口时，必须使用复数形式。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
身体孔口；身体开口
The nurse explained that every bodily orifice is a potential entry point for infection.
护士解释说，身体的每个孔口都可能成为感染的入口。
鼻孔；鼻腔开口
The doctor examined the nasal orifice for swelling.
医生检查鼻孔是否有肿胀。
肛门；肛门口
The medication is applied around the anal orifice.
药物涂抹在肛门周围。
天然孔口（身体自然存在的开口）
Natural orifice surgery is performed through the body's existing openings.
经自然孔口手术是通过身体现有的开口进行的。
外口；外部开口
The external orifice of the uterus is called the cervical os.
子宫的外口称为宫颈口。
Use orifices naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 orifice 拆成 ori（口）加 fice，想象身体上的“口”张成一个小孔，所有管口都叫 orifice。
语域：formal 常见场景：解剖/医学描述、正式书面说明、技术或产品说明 orifice 是比较正式或带技术色彩的词，多用于医学、解剖或正式书面描述；日常口语中通常改用 hole 或 opening。
没有常见词与 orifice (/ˈɒrɪfɪs/) 完全押韵，因为它的重读元音 /ɒ/ 后面还有 /rɪfɪs/。Office (/ˈɒfɪs/) 是形近词，但缺少 /r/ 音。其他 -ice 结尾的词（service、justice、notice、practice）只是拼写都以 ice 结尾、且都以 /ɪs/ 收尾，重读元音不同，所以不算押韵。Sacrifice 尤其容易看错：它拼写也以 -fice 结尾，但读作 /ˈsækrɪfaɪs/，末尾是 /aɪs/ 而不是 /ɪs/。
Dictionary facts from ECDICT, WIKTIONARY.