1
made of brass
brass 作材料时不可数。
The doorknob is made of brass.
门把手是黄铜制成的。
黄铜
先理解核心含义，再看它在真实句子里的用法。
黄铜
A yellowish metal made by mixing copper and zinc, used for pipes, fittings, and decorative objects.
The doorknob is made of brass.
门把手是黄铜制成的。
铜锌合金,广泛用于工业和管道应用。
A metallic alloy of copper and zinc used in many industrial and plumbing applications.
铜管乐器类,通常由金属(如黄铜)制成,靠演奏者嘴唇振动发声；也指以这类乐器为主的乐队或管弦乐队中的铜管乐组。
A class of wind instruments, usually made of metal (such as brass), that use vibrations of the player's lips to produce sound; a band or the section of an orchestra that features such instruments.
用过的弹壳(通常为黄铜制):子弹或炮弹发射后留下的弹壳部分。
Spent cartridge casings (usually made of brass): the part of the cartridge left over after bullets or shells have been fired.
黄铜的颜色(词源1,名词义项1)。
The color of brass (etymology 1, noun sense 1).
The doorknob is made of brass.
门把手是黄铜做的。
She wore a beautiful brass necklace.
她戴了一条漂亮的黄铜项链。
He polished the brass until it shone.
他把黄铜擦得闪闪发光。
brass 作材料时不可数。
The doorknob is made of brass.
门把手是黄铜制成的。
the brass 指铜管乐器组。
He plays the brass in the orchestra.
他在管弦乐队中演奏铜管乐器。
brass 作'纪念牌'时可数。
The church has a brass commemorating the war dead.
教堂里有一块纪念战争死难者的黄铜牌。
Not this
This statue is made of bronze.
Use this
This statue is made of brass.
中文学习者常混淆 'brass'（黄铜）和 'bronze'（青铜），因为中文都带'铜'字但成分不同。brass是铜锌合金，bronze是铜锡合金。
Not this
I need a brass for the door handle.
Use this
I need brass for the door handle.
brass作为金属材料时为不可数名词，不能直接加不定冠词。应使用零冠词或'piece of brass'等表示数量。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
铜管乐队
The brass band played a lively tune at the festival.
铜管乐队在节日里演奏了一首欢快的曲子。
铜管乐器组
She has been playing in the brass section of the orchestra for years.
她在管弦乐队的铜管乐器组演奏多年。
高层领导
The top brass decided to approve the new project.
高层领导决定批准这个新项目。
厚脸皮
He had the brass neck to ask for a promotion just after joining.
他刚加入就厚着脸皮要求升职。
黄铜配件
All the door handles and hinges are brass fittings.
所有的门把手和合页都是黄铜配件。
黄铜抛光剂
Use brass polish to keep the candlesticks shiny.
用黄铜抛光剂保持烛台光亮。
开始讨论实质问题
Let's get down to brass tacks and discuss the budget.
让我们开始讨论实质问题，讨论预算吧。
厚颜无耻
He had the brass neck to ask for a raise after only a week.
他工作仅一周就要求加薪，真是厚颜无耻。
高级官员/高层领导
The top brass are meeting to decide the company's future.
高层领导正在开会决定公司的未来。
我很特别，很特别，我口袋里有钱。
The Pretenders' song 'Brass in Pocket' uses the word 'brass' as slang for money.
The Pretenders的歌曲《Brass in Pocket》中，“brass”是钱的俚语。
Use brass naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
黄铜( brass )是铜锌合金，常用于铜管乐器，b像喇叭口。
此处指领导层或高级官员，通常用于非正式场合，例如军队或公司中的高层。
作'黄铜'或'厚颜无耻'时不可数，作'铜管乐器'时可数（复数brasses），作'高级官员'时通常不可数（the brass）
Dictionary facts from ECDICT, WIKTIONARY.