fog up; steam up
1. fog up; steam up
For water vapor to coagulate into water drops due to cold air.
2. be fraught with; be filled with
For certain energy to be felt in a place.
3. be kept deep in one's heart; be embedded in
For a certain thought to be kept deep in one's mind.
4. fill the air; hang in the air
For a smell, etc., to permeate the air.
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