16 Business English Idioms You Need to Know for Your Next Customer Service Job
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What does under the weather mean?
50 Common English Idioms You Need to Know - LinguoDan
Learn English: Sick vs Ill & Under the Weather (Idiom)
IDIOM: TO BE UNDER THE WEATHER
Ifluent English - Idiom: under the weather Meaning: to be ill. Have you been under the weather recently?
How to say you are not feeling well professionally at work