The explanation of fog (_) is close to the water vapor on the ground, and the small water droplets floating in the air after freezing: fog. Fog. Fog. Clouds. Wu Song (commonly known as "tree hanging"). Something resembling fog: smoke. Aerosol. Sprayer. Number of strokes:; Radical: rain;

Interpretation of Blue (_) × Fog in the Mountain: Xi Lan. Shan Lan. Xiaolan. A misty mountain. Number of strokes:; Radical: mountain; .