1
a double-decker
double-decker 作可数名词，前面可加不定冠词
We took a double-decker to the city center.
我们乘了一辆双层巴士去市中心。
双层公共汽车
先理解核心含义，再看它在真实句子里的用法。
双层公共汽车
a bus with two levels for carrying passengers
We took a double-decker to the city center.
我们乘了一辆双层巴士去市中心。
有两层的车辆(通常是公共汽车、长途汽车或火车)或飞机
A vehicle (usually a bus, coach or train) or aircraft with two floors.
水线以上有两层甲板的护卫舰
A frigate with two decks above the waterline.
上下堆叠的两层或两部分的物体
Any object with two layers or parts stacked on top of each other.
两行长的标题
A headline that is two lines long.
We took a double-decker to get a better view of the city.
我们乘坐了一辆双层公共汽车，以便更好地欣赏城市风光。
The red double-decker is a famous symbol of London.
红色的双层公共汽车是伦敦著名的标志。
Some double-deckers have open tops for tourists.
一些双层公共汽车有敞开的顶层供游客使用。
double-decker 作可数名词，前面可加不定冠词
We took a double-decker to the city center.
我们乘了一辆双层巴士去市中心。
复数形式
The double-deckers are painted red in London.
伦敦的双层巴士被漆成红色。
double-decker 可作定语修饰名词，意为双层的
She bought a double-decker bed for her children.
她给孩子们买了一张双层床。
Sitting on the top deck of a double-decker is fun.
坐在双层巴士的上层很有趣。
Not this
I bought a double-decker for my room.
Use this
I bought a double bed for my room.
“double-decker”特指双层公共汽车等车辆；表示双人床应用“double bed”。
Not this
There are many double-deckers buses in London.
Use this
There are many double-decker buses in London.
“double-decker”作定语修饰名词时保持单数形式，无需复数化。
Choose the next layer that will help you use double-decker with more confidence.
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use double-decker naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.