1
a binder for [something]
这里的 for 引出粘结剂所作用的对象，常用于材料或化学语境。
This resin is a binder for the pigment.
这种树脂是颜料的粘结剂。
活页夹；文件夹
先理解核心含义，再看它在真实句子里的用法。
活页夹；文件夹
a cover or folder for holding loose papers or magazines
This resin is a binder for the pigment.
这种树脂是颜料的粘结剂。
捆绑者；装订者
Someone who binds.
用于装订散页的封面或活页夹
A cover or holder for unbound papers, pages, etc.
用于将物品绑在一起的东西,常指书籍的装订机构
Something that is used to bind things together, often referring to the mechanism that accomplishes this for a book.
执行绑定的软件机制
A software mechanism that performs binding.
She keeps all her receipts in a binder so she can find them easily.
她把所有收据放在活页夹里，以便随时找到。
I need to buy a new binder for my class notes before the semester starts.
开学前我需要为课堂笔记买一个新的活页夹。
Please put the printed handouts into the blue binder on the shelf.
请把打印好的讲义放到架子上那个蓝色活页夹里。
这里的 for 引出粘结剂所作用的对象，常用于材料或化学语境。
This resin is a binder for the pigment.
这种树脂是颜料的粘结剂。
binder 指活页夹时是可数名词，常与 put 连用，表示把文件放入活页夹。
She put all her papers in a binder.
她把她所有的文件都放进了活页夹。
as 表示“当作、作为”，说明把某物用作粘合剂。
You can use egg as a binder for the breadcrumbs.
你可以用鸡蛋作为面包糠的粘合剂。
Not this
Please binder the documents before handing them in.
Use this
Please bind the documents before handing them in.
binder 是名词（活页夹、粘合剂、捆缚者等），不能作动词。汉语的“装订/捆扎”是动词，英语应使用动词 bind。改用 bind 后，句子结构和语义才正确。
Not this
This glue has binder properties.
Use this
This glue has binding properties.
binder 是名词，一般不作定语修饰另一名词；表示“粘合的/绑定的”时要用形容词 binding。英语的习惯搭配是 binding properties（粘合性能），因此不能用 binder。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
活页夹
She kept her notes in a ring binder.
她把笔记放在活页夹里。
谷物割捆机
The farmer used a grain binder to harvest the wheat.
农民用谷物割捆机收割小麦。
涂料粘结剂
This paint binder helps the color stick to the wall.
这种涂料粘结剂帮助颜料附着在墙上。
捆绳
He tied the hay bales with binder twine.
他用捆绳捆扎干草捆。
我有满满几大本女性资料。
Whenever someone says 'binder,' many people still think of that famous debate line.
每当有人提到'binder'这个词，许多人仍会想起那次著名的辩论台词。
Use binder naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
binder 里有 bind（绑），活页夹把散页“绑”在一起；胶水把东西“粘住”，也是 binder。
语域：neutral 常见场景：school、office “binder”表示“活页夹”时通常为中性词，多用于学校、办公室等日常场景，正式与非正式场合均可使用。注意它另有“粘合剂”等专业义项，但本条目聚焦“活页夹”这一常用义。
与 binder 押韵：finder、grinder、reminder（均读 /aɪndə/）。注意 tinder、cinder 拼写相近，但元音为 /ɪ/，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.