Is it fog or mist?

The correct word for this word is "Mist" and the pinyin is Wu Bo.

Pinyin is Bo's second sound, and Pinyin is Wu's fourth sound. Fog refers to thin fog, usually a weather phenomenon, which means that water vapor in the air condenses into water droplets or ice crystals at low temperature, forming a thin fog layer. This kind of fog usually appears in the morning or evening, or in the cold season.

In nature, mist is usually a beautiful and mysterious phenomenon, which brings people a lot of visual and perceptual enjoyment. Mist can also refer to a vague scene, or it can be a metaphor for a vague thing or scene.