Word · CEFR B2 · Frequency #4940
Fully loadedexhaust
废气
The waste gas produced by an engine.
- 1.
A system consisting of the parts of an engine through which burned gases or steam are discharged; see also exhaust system.
发动机中用于排出燃烧气体或蒸汽的部件组成的系统；另见“排气系统”。
- 2.
The steam let out of a cylinder after it has done its work there.
蒸汽在气缸中做功后排出。
- 3.
The dirty air let out of a room through a register or pipe provided for the purpose.
通过专门设置的通风口或管道排出的室内污浊空气。
- 4.
An exhaust pipe, especially on a motor vehicle.
排气管,尤指机动车上的。
- 5.
Exhaust gas.
废气。
排气管；排气系统；废汽；污浊空气；发动机中用于排出燃烧气体或蒸汽的部件组成的系统；另见“排气系统”。
In use
The car's exhaust is emitting a lot of smoke.
Diesel exhaust contains harmful particles.
He checked the exhaust for leaks.
the exhaust from [sth]
表示废气来源时常用from。
The exhaust from the car is harmful to health.
汽车排放的废气有害健康。
[sth] exhaust
名词前置修饰exhaust，表示某种类型的废气或排气系统。
Diesel exhaust contains fine particles.
柴油机排气含有细微颗粒。
Common mistakes
I am exhaust after work.I am exhausted after work.
动词 exhaust 的过去分词 exhausted 用作形容词表示“精疲力尽的”，而 exhaust 本身是动词原形或名词，不能直接用作形容词。
Connections
Collocations
- exhaust fumes
- 废气
- The exhaust fumes from the truck were thick and black.卡车排出的废气又浓又黑。
- exhaust pipe
- 排气管
- The exhaust pipe was damaged in the accident.排气管在事故中损坏了。
- exhaust system
- 排气系统
- He replaced the entire exhaust system on his car.他更换了汽车上的整个排气系统。
- exhaust gas
- 废气
- Exhaust gas from factories contributes to air pollution.工厂排放的废气导致空气污染。
- exhaust manifold
- 排气歧管
- The exhaust manifold needs to be replaced.排气歧管需要更换。
- diesel exhaust
Learner notes
Memory Tip
想象汽车排气管（exhaust）排出废气，像哈出一口气，让人‘耗死’——废气与耗尽同形。
Context & Register
Technical setting, e.g., automotive exhaust system. 通常用于汽车排气系统等工程语境，语体中性。
Pronunciation & Spelling
单词 'cost', 'frost', 'lost', 'tossed', 'crossed' 均与 'exhaust' 押韵（以 /ɔːst/ 结尾）。注意 'ghost', 'boast', 'toast' 等词拼写相似但元音不同（/oʊst/），并不押韵。
Usage priority
Collins 词频等级为 3，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
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, OCTANOVE, WIKTIONARY, WORDNET.