Englishfor English speakers
bubble
Noun
—
A bubble is a volume of air trapped in a liquid and can float in the air.
The girl made a really big soap bubble.
bubble
Verb
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If something bubbles, it makes bubbles or begins to turn into a bubble.
Wait until the water bubbles before turning off the stove.
—
If something bubbles, it begins forming or is created.
bubbled inside of him.
policy
Noun
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A policy is an official rule or idea that explain how to act in certain situations.
The college policy is that teachers may not have any sexual relationship with students.
The government is suggesting a significant change in economic policy.
In at least one case there was a deliberate policy decision not to involve the police.
The policy at the movie theater said we should turn on phones off and be quiet, during the movie.
of
Preposition
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Made using.
It is a house of cards.
emission
Noun
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Emissions are the gas, light, sound, etc. that are sent out.
Just over half of the total emissions is due to human activity.
—
Emission is the sending out of gas, light, sound, etc.
The change prevented the emission of 51.8 million tons of carbon dioxide.
reduction
Noun
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A reduction is how much something is reduced.
There was a 5% reduction in prices at the clothing store during the sale.