smog

/smɒɡ/ (bre, ipa) · /smɑːɡ/ (ame, ipa) · /ˈsmäg ˈsmȯg/ (ame, mw)

smog — noun

1. a thick, dirty haze in the air caused by pollution from cars, factories, and oth

1.名詞B1
釋義

a thick, dirty haze in the air caused by pollution from cars, factories, and other sources; especially common in large cities and harmful to breathe.

例句

Ayesha could not see the mountains because thick smog had settled over the city.

collocation: thick smog

The government warned residents to wear masks when smog levels reached dangerous highs.

collocation: smog levels

同義詞
  • haze

    a broader term for any thin mist or vapor; haze may be natural (humidity) whereas smog always contains pollutants

  • pollution

    a general term for any harmful substances in the environment; smog is a specific visible type of air pollution

  • fog

    a natural weather phenomenon of thick water vapor near the ground; smog is fog-like but caused by human-made pollutants

文法句型

uncountable; cannot be used with 'a' or plural -s

常見錯誤

❌The smog is a big problem in winter.
✅Smog is a big problem in winter.
💡smog is uncountable and does not take 'a' or 'the' for general reference.
❌There were thick smogs all week.
✅There was thick smog all week.
💡smog is uncountable; do not add a plural -s.