B2 adjective 中性

emission

/ɪˈmɪʃ.ən/

The production and discharge of something, especially gas or radiation, into the environment. It is most commonly used in environmental science to describe the release of pollutants from vehicles, factories, or natural sources.

例句

3 / 5
1

My old car failed its yearly emission test because of a hole in the exhaust pipe.

My old car failed its yearly emission test because of a hole in the exhaust pipe.

2

The international treaty requires developed nations to reduce their carbon emission levels significantly by 2030.

The international treaty requires developed nations to reduce their carbon emission levels significantly by 2030.

3

There is a weird heat emission coming from the back of the fridge.

There is a weird heat emission coming from the back of the fridge.

词族

名词
emission
Verb
emit
形容词
emissive
相关
emitter
💡

记忆技巧

Think of the word 'Exit.' An emission is when gas or light 'exits' a source.

快速测验

The government has introduced stricter ___ standards for new diesel trucks.

正确!

正确答案是: emission

例句

1

My old car failed its yearly emission test because of a hole in the exhaust pipe.

everyday

My old car failed its yearly emission test because of a hole in the exhaust pipe.

2

The international treaty requires developed nations to reduce their carbon emission levels significantly by 2030.

formal

The international treaty requires developed nations to reduce their carbon emission levels significantly by 2030.

3

There is a weird heat emission coming from the back of the fridge.

informal

There is a weird heat emission coming from the back of the fridge.

4

Quantitative analysis shows that the emission of greenhouse gases is directly proportional to industrial growth in this region.

academic

Quantitative analysis shows that the emission of greenhouse gases is directly proportional to industrial growth in this region.

5

Our corporate social responsibility report highlights our transition to low-emission manufacturing processes.

business

Our corporate social responsibility report highlights our transition to low-emission manufacturing processes.

词族

名词
emission
Verb
emit
形容词
emissive
相关
emitter

常见搭配

carbon emission The release of carbon dioxide into the atmosphere.
greenhouse gas emissions Gases that trap heat in the atmosphere, such as methane and CO2.
emission standards Legal requirements governing pollutants released into the atmosphere.
zero-emission An engine or process that emits no waste products that pollute the environment.
toxic emission The release of poisonous substances into the air or water.

常用短语

zero-emission vehicle

A vehicle that does not emit exhaust gas from the onboard source of power.

emission trading

A market-based approach to controlling pollution by providing economic incentives.

carbon footprint

The total amount of greenhouse gases generated by our actions.

容易混淆的词

emission vs omission

An omission is leaving something out, while an emission is letting something out.

emission vs transmission

Transmission refers to the act of sending or passing something (like signals or diseases) from one place to another.

📝

使用说明

While 'emission' is the singular act, it is very common to use the plural 'emissions' when talking about pollutants in a general sense (e.g., 'reducing global emissions'). In technical contexts, it can also refer to the release of light or sound.

⚠️

常见错误

Learners often use 'emit' as a noun or 'emission' as a verb. Remember that 'emission' is the thing or process, and 'emit' is the action.

💡

记忆技巧

Think of the word 'Exit.' An emission is when gas or light 'exits' a source.

📖

词源

From the Latin 'emissio', derived from 'emittere', which means 'to send out' (e- 'out' + mittere 'send').

语法模式

Used as a countable noun when referring to specific types (e.g., carbon emissions). Often functions as an attributive noun modifying other nouns (e.g., emission levels, emission control).
🌍

文化背景

In modern English-speaking cultures, this word is heavily associated with climate change debates and environmental regulations.

快速测验

The government has introduced stricter ___ standards for new diesel trucks.

正确!

正确答案是: emission

相关词

pale

A1

Describes something that has very little color or is much lighter than usual. It is often used to describe a person's face when they are ill or a color that is mixed with a lot of white.

lung

A1

The lungs are two organs inside your chest that you use to breathe. They bring oxygen into your body and remove carbon dioxide when you breathe out.

tropical

A1

Relating to the hot regions of the Earth near the equator. It describes weather that is very warm and wet, or plants and animals that come from these areas.

trader

A1

A trader is a person whose job is to buy and sell goods, stocks, or other items for profit. They can work in a small local market or on large international financial exchanges.

indoor

A1

Describes something that is located, happens, or is used inside a building rather than outside. It is an adjective used before a noun to talk about activities or objects protected from the weather.

threshold

A1

A threshold is the physical area at the bottom of a doorway that you step over to enter a room or building. It also refers to the level or point at which something starts to happen or changes.

tribute

A1

A tribute is something that you say, do, or give to show your respect and admiration for someone. It is often a public act used to honor a person's life, work, or memory.

elder

A1

Used to describe a person who is older than another, especially within a family. It is also used to refer to people who have a high status or more experience because of their age.

russian

A1

Relating to Russia, its people, its language, or its culture. It describes things that come from or are connected to the largest country in the world.

southeastern

A1

Located in or coming from the direction between south and east. It describes a place, a region, or a wind that is in the corner between the bottom and the right on a map.

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