sleeves
The sleeves of a coat, shirt, or other item of clothing are the parts that cover your arms.
His sleeves were rolled up to his elbows.
他的两只袖子挽到了肘部。
A record sleeve is the stiff cover in which a record is kept.
an album sleeve.
一个唱片套。
have something up one's sleeve
If you have something up your sleeve, you have an idea or plan which you have not told anyone about. You can also say that someone has an ace, card, or trick up their sleeve.
He wondered what tricks Shearson had up his sleeve.
他想知道希尔森有何锦囊妙计。