emit

emit的音标为[ɪˈmɪt]，基本翻译为“发出，发射；排放；公布，发布”。记忆技巧：emit“发出”可以与眼睛、声音、气味等进行联想记忆。

"emit"这个词的词源可以追溯到拉丁语"emitere"，意为“发射、抛出”。它的词形变化形式主要有过去式"emitted"，过去分词"emitted"，现在分词"emitting"，以及形容词"emitting"。

相关单词：

1. emission（发射，排放）：这个词由"emit"和"tion"构成，表示发射或排放出来的物质或能量。

2. emitters（发射器）：这个词指的是能够发射或发出某种信号或能量的设备或装置。

3. emitivity（发射性）：这个词用来描述物体或物质发射或辐射能量的能力。

4. emitivity coefficient（发射系数）：这是一个物理学中的概念，用来描述物体或物质发射或辐射能量的程度。

5. emitant（发射体）：这个词指的是能够发射或发出某种信号或能量的物体或物质。

以上这些单词都与"emit"这个词有密切的联系，它们在英语中都广泛使用，并且在不同的领域中有着不同的含义和用法。总的来说，"emit"这个词在英语中是一个非常常用的词汇，它描述了物体或物质发出或发射某种能量的过程。

常用短语：

1. emit a sound

发出声音

2. emit light

发出光

3. emit a signal

发出信号

4. emit energy

释放能量

5. emit a warning

发出警告

6. emit smoke

冒烟

7. emit waste gas

排放废气

双语例句：

1. The explosion emitted a loud noise.

爆炸发出了一声巨响。

2. The laser beam emitted a bright light.

激光发出明亮的光。

3. The radio signal was emitted by a satellite.

无线电信号是由卫星发出的。

4. The sun emits vast amounts of energy daily.

太阳每天释放大量的能量。

5. A warning horn emitted a loud noise.

警报器发出刺耳的声音。

6. The factory is emitting thick black smoke into the air.

工厂正在向空气中排放浓烟。

7. We must stop factories from emitting harmful gases into the air.

我们必须阻止工厂向空气中排放有害气体。

英文小作文：

标题：The Importance of Environmental Protection and the Role of Emission Control

Environmental protection is an increasingly important topic in today"s world, as we strive to protect our planet and ensure a sustainable future for future generations. One of the key aspects of environmental protection is emission control, which aims to reduce the amount of pollutants and greenhouse gases emitted into the air, water, and soil. Emission control measures can include strict regulations on factories and vehicles, as well as the use of renewable energy sources such as solar and wind power. These measures can help to reduce air pollution, improve air quality, and reduce the impact of climate change on our planet. However, we must also encourage individuals to take action to reduce their own emissions, such as by using public transport, walking or cycling instead of driving, and reducing our consumption of resources. Only by working together can we protect our planet and ensure a sustainable future for ourselves and future generations.