unhealthy levels

Chinese meaning
(
In this story →
Example
On Sept. 4, Singaporean residents woke to a smoggy sky as air quality reached unhealthy levels.
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Source: Mongabay · 4 Sep 2026
Background ✎
Roots · etymology
healthy源自古英语hælþ,意为整体、健全
- un-(否定前缀)+ healthy(健康的)+ levels(水平,名词复数)
Collocations
- reach unhealthy levels / unhealthy levels of pollution / drop to unhealthy levels

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unhealthy levels explainer clip
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