多雾天用英语怎么说

"Foggy day" is how "多雾天" is typically translated in English.
The word "fog" in English comes from the Old English word "fogge," which means "mist." "Foggy" is the adjective form, meaning "covered or obscured by fog."
Here are some example sentences of "foggy day" in English and their translations:
"It's a very foggy day today, so be careful when you drive." (今天是一个非常多雾的天气，所以开车要小心。)
"I love walking in the park on a foggy day." (我喜欢在多雾的天气里在公园里散步。)
"I can't see very far in front of me because of the foggy day." (由于多雾天气，我看不到前面很远。)