1
tear along the perforation
perforation 此处指一排小孔形成的易撕线，常用单数。
Tear along the perforation to open the package.
沿着易撕线撕开，就能打开包装。
孔；穿孔
先理解核心含义，再看它在真实句子里的用法。
孔；穿孔
a hole made in something
Tear along the perforation to open the package.
沿着易撕线撕开，就能打开包装。
穿孔；被穿孔的状态。
The act of perforating or the state of being perforated.
穿孔；孔洞；开口。
Any opening in a solid object.
器官上的异常开口,如破裂。
An abnormal opening in an organ, such as a rupture.
为便于分离而打的一系列孔。
A series of holes punched through something in order to assist in separating parts.
The perforation near the top of the box lets you open it without scissors.
盒子顶部附近的易撕线让你不用剪刀就能打开。
She tore along the perforations to separate the two pages in her notebook.
她沿着易撕线撕开，把笔记本里的两页分开了。
Please fold the paper along the perforation before you tear off the coupon.
请先沿易撕线折叠纸张，再撕下优惠券。
perforation 此处指一排小孔形成的易撕线，常用单数。
Tear along the perforation to open the package.
沿着易撕线撕开，就能打开包装。
在医学语境中，perforation 指器官壁上的孔洞，为可数名词。
The doctor found a small perforation in the intestinal wall.
医生在肠壁上发现了一个小穿孔。
表示‘打孔’的动作或结果时，perforation 常用复数，指多个孔眼。
The machine makes perforations in the paper for easy tearing.
机器在纸上打孔，以便撕开。
Not this
Please check the perforate of the paper.
Use this
Please check the perforation of the paper.
“perforate”是动词（或形容词），不是名词；“perforation”才是名词形式。定冠词the后面需要名词，因此应改用perforation。
Not this
The sheet has many perforation.
Use this
The sheet has many perforations.
perforation是可数名词，表示多个孔眼时要用复数perforations；many后接复数可数名词。
Not this
There is a perforation on the metal sheet.
Use this
There is a perforation in the metal sheet.
表示某物上的孔洞时，perforation与in搭配，指“在……内部/表面穿透的孔”；用on会误以为孔只是附着在表面上。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
肠穿孔
Bowel perforation requires immediate surgery.
肠穿孔需要立即手术。
鼓膜穿孔
A perforation of the eardrum can cause hearing loss.
鼓膜穿孔可能导致听力丧失。
孔眼线；易撕线
The ticket separates neatly along the perforation line.
票沿易撕线整齐撕开。
打一个孔
The machine makes a perforation in each sheet of paper.
机器在每张纸上打一个孔。
细小的穿孔
Tiny perforations in the wrapper allow the bread to breathe.
包装上的细小穿孔让面包可以透气。
Use perforation naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 perforation 拆成 per + for + ation：为了(for)方便撕开，预先打出一排小孔。
语域：mixed 常见场景：医学报告、产品规格说明、票券或纸张 perforation 的语体会随语境变化：在医学报告等多用于正式书面语，指器官或组织的穿孔；在票券、纸张或产品说明中则较中性，常指易撕线或孔眼。整体上以正式场合比较常见。
These words all rhyme with 'perforation' because they share the stressed vowel /eɪ/ and the final /ʃən/ in the '-ation' suffix. Be careful not to confuse 'perforation' with 'profession' /prəˈfeʃən/ or 'perfection' /pərˈfekʃən/, which look similar but sound different.
Dictionary facts from ECDICT, WIKTIONARY.