1
roll up sb's sleeves
常用表达，表示准备开始干活。
He rolled up his sleeves to wash the dishes.
他卷起袖子洗碗。
袖子
sleeves — plural of sleeve
先理解核心含义，再看它在真实句子里的用法。
袖子
the part of a garment that covers the arm
He rolled up his sleeves to wash the dishes.
他卷起袖子洗碗。
衣服上覆盖手臂的部分
The part of a garment that covers the arm.
袖子
the part of a garment that is attached at the armhole and that provides a cloth covering for the arm
用于保护机械等的(通常是管状的)覆盖物或衬里
A (usually tubular) covering or lining to protect a piece of machinery etc.
套子
small case into which an object fits
She rolled up her sleeves to wash the dishes.
她卷起袖子来洗碗。
The shirt has long sleeves, so it's perfect for cold weather.
这件衬衫有长袖，所以非常适合寒冷的天气。
He tore the sleeve of his jacket on a nail.
他的夹克袖子被钉子划破了。
常用表达，表示准备开始干活。
He rolled up his sleeves to wash the dishes.
他卷起袖子洗碗。
比喻有秘密计划或妙计。
She always has a trick up her sleeve.
她总是暗藏一招。
指不隐藏情感。
Don't wear your heart on your sleeve; it makes you vulnerable.
不要感情外露，那样会让你变得脆弱。
The sleeve of his coat was torn.
他外套的袖子破了。
Not this
I bought a shirt with long sleeve.
Use this
I bought a shirt with long sleeves.
中文中“袖子”通常不区分单复数，但英语中sleeve是可数名词，修饰衣服时常用复数形式表示衣服的袖子设计。
Not this
He wore a short sleeve shirt.
Use this
He wore a short-sleeved shirt.
英语中描述衣服袖子长度时，常用带-ed后缀的复合形容词（如long-sleeved, short-sleeved），而不是直接用名词sleeve修饰。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
长袖
He prefers shirts with long sleeves.
他更喜欢长袖衬衫。
短袖
In summer, she wears T-shirts with short sleeves.
夏天她穿短袖T恤。
卷起袖子
He rolled up his sleeves and started working.
他卷起袖子开始干活。
衬衫袖子
The shirt sleeve has a button.
衬衫袖子有一颗纽扣。
袖长
Check the sleeve length before buying the coat.
买外套前检查一下袖长。
公开表露感情
She always wears her heart on her sleeve.
她总是公开表露自己的感情。
卷起袖子（准备努力工作或战斗）
It's time to roll up our sleeves and get the job done.
是时候卷起袖子把工作完成了。
有锦囊妙计；留有后手
Don't worry, I have a plan up my sleeve.
别担心，我有个秘密计划。
公开流露感情；心直口快
She wears her heart on her sleeve, so you always know how she feels.
她感情外露，所以你总能知道她的感受。
我是个言出必行的人。再也没有藏着的牌了。
From The Dark Knight (2008), spoken by the Joker.
出自2008年电影《黑暗骑士》，由小丑说出。
发长 /iː/ 音 (如 see, free)
Use sleeves naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
袖子（sleeve）: 穿衣服时，手臂从袖口伸入，如同剑入鞘。
[object Object]
常用 'sleeve of ...' 结构表示某物的袖子
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.