perforation
🇺🇸
/ˌpɜːrfəˈreɪʃn/
🇬🇧
/ˌpɜːfəˈreɪʃn/
noun
R
A tiny hole made in something, often part of a pattern of holes.
The new stamps had neat perforations along the edges for easy separation.
新郵票邊緣有整齊的孔洞，便於分開。
R
When something is torn or split, leaving a hole.
The perforation of the eardrum can be caused by a sudden, loud noise.
鼓膜的穿孔可能是由突然的響聲引起的。
translation
穿孔
詞形變化
Plural
perforations