How do gas masks actually work? - George Zaidan – YouTube Dictation Transcript & Vocabulary
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Transcripción interactiva y destacados
1.You might think of gas masks as clunky, spooky, military-looking only found in spy movies or World War I museums
2.But you probably already own a mask that uses remarkably similar
3.And in the near future, we may need to rely on these filters as part of our everyday lives
4.In addition to emerging diseases, wildfire frequency has more than tripled from 1996 to 2021
5.As fires burn longer and cover more land, their smoke affects more people each year
💡 Tap the highlighted words to see definitions and examples
Vocabulario clave (CEFR B2)
pollutant
A2A foreign substance that makes something dirty, or impure, especially waste from human activities.
Example:
"this technology can capture pollutants in one of two ways:"
including
A2To bring into a group, class, set, or total as a (new) part or member.
Example:
"including ozone molecules."
indicators
A2A pointer or index that indicates something.
Example:
"Even with the right mask, it's still smart to check air quality indicators"
purifiers
A2A A2-level word commonly used in this context.
Example:
"and using HEPA filter equipped air purifiers"
following
A2To go after; to pursue; to move behind in the same path or direction.
Example:
"Following these guidelines can help us breathe easy"
protect
A2To keep safe; to defend; to guard; to prevent harm coming to.
Example:
"and can they protect us from new and old airborne threats?"
devices
A2Any piece of equipment made for a particular purpose, especially a mechanical or electrical one.
Example:
"You might think of gas masks as clunky, spooky, military-looking devices"
technology
B1The organization of knowledge for practical purposes.
Example:
"But you probably already own a mask that uses remarkably similar technology."
climate
A2An area of the earth's surface between two parallels of latitude.
Example:
"Climate change is also causing more hot, sunny days,"
without
A2Outside, externally. This is still used in the names of some civil parishes in England, e.g. St Cuthbert Without.
Example:
"Without that, even the best mask in the world is useless."
| Palabra | CEFR | Definición |
|---|---|---|
| pollutant | A2 | A foreign substance that makes something dirty, or impure, especially waste from human activities. |
| including | A2 | To bring into a group, class, set, or total as a (new) part or member. |
| indicators | A2 | A pointer or index that indicates something. |
| purifiers | A2 | A A2-level word commonly used in this context. |
| following | A2 | To go after; to pursue; to move behind in the same path or direction. |
| protect | A2 | To keep safe; to defend; to guard; to prevent harm coming to. |
| devices | A2 | Any piece of equipment made for a particular purpose, especially a mechanical or electrical one. |
| technology | B1 | The organization of knowledge for practical purposes. |
| climate | A2 | An area of the earth's surface between two parallels of latitude. |
| without | A2 | Outside, externally. This is still used in the names of some civil parishes in England, e.g. St Cuthbert Without. |
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