1
a [number]-seater
常与数词连用，表示“有…个座位的车辆”，口语中常用。
This car is a five-seater.
这辆车是五座车。
…座车；有…座位的交通工具
先理解核心含义，再看它在真实句子里的用法。
…座车；有…座位的交通工具
a vehicle with a specified number of seats
This car is a five-seater.
这辆车是五座车。
通常与数字连用，如 a five-seater（五座车）
This compact four-seater is perfect for city driving.
这款紧凑型四座车非常适合城市驾驶。
They bought a two-seater sports car for weekend trips.
他们买了一辆双座跑车用于周末旅行。
The new minibus is a twelve-seater, so it can carry the whole team.
这辆新小巴是十二座的，所以能载下整个团队。
常与数词连用，表示“有…个座位的车辆”，口语中常用。
This car is a five-seater.
这辆车是五座车。
数字与 seater 之间用连字符，整体可作定语修饰车辆类型。
They bought a seven-seater SUV.
他们买了一辆七座SUV。
复数形式直接加 -s，指多辆这类车。
Most family vans are seven-seaters.
大多数家用面包车都是七座车。
Not this
She drives a five-seats car.
Use this
She drives a five-seater car.
在名词复合词中，数词后的名词用单数；表示“有…个座位的车”时要用名词 seater，不能说 seats 的复数形式。
Not this
He bought a seater for his family.
Use this
He bought a six-seater for his family.
seater 通常要与数词连用构成复合名词（如 six-seater）来指明座位数，单独说 a seater 意思不完整，也不符合英语习惯。
Not this
He owns a 12-seat.
Use this
He owns a 12-seater.
12-seat 只能作定语修饰名词（如 a 12-seat van），不能单独作名词；要表达“12座车”须用名词 seater，即 a 12-seater。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
双座车
He drove a two-seater along the coast.
他开着一辆双座车沿着海岸行驶。
四座车
The four-seater has a spacious trunk.
这辆四座车的后备箱很宽敞。
五座车
This five-seater is ideal for a small family.
这辆五座车很适合小家庭。
七座车
They use a seven-seater to take the kids to school.
他们用一辆七座车送孩子们上学。
单座车
The single-seater is fast but hard to handle.
这辆单座车速度很快，但难以操控。
一辆1961年款法拉利250 GT加州，它是一辆双座车。
This sports car is a two-seater, so there's no room for backseat passengers.
这辆跑车是双座的，所以没有后排乘客的空间。
我一直在找一个能满足我需求的司机，我是一辆双座车。
A two-seater is great for a romantic drive, but not for a family trip.
双座车适合浪漫兜风，但不太适合家庭出行。
Use seater naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
seat 是座位，seater 就是“有……座位的车”；想象一辆 four-seater 四座汽车停在眼前。
语域：neutral 常见场景：汽车销售与广告、日常车辆描述、车辆规格讨论 “seater”多作为后缀构成复合词（如 four-seater），比较常见于日常口语和汽车销售、车辆描述中，用来指有…座位的交通工具。此用法整体属于中性语体，正式场合也可以使用，但没有特别的语体限制。
These words rhyme with seater /ˈsiːtə/: eater, beater, heater, cheater, neater, and meter (BrE). Beware sweater /ˈswɛtə/: it looks like it should rhyme but has a different vowel.
Dictionary facts from ECDICT, WIKTIONARY.