Definition
When glass or a similar surface gets coated with a layer of moisture due to steam interaction, or when you intentionally cause this phenomenon.
使表面蒙上一層水汽
When you heat a pot on the stove, the inside of the lid steams up due to the vapor.
當你在爐子上加熱鍋子時，鍋蓋內部會因為蒸汽而蒙上一層水氣。
In cold weather, my glasses often steam up, making it hard for me to see.
在寒冷的天氣裡，我的眼鏡經常蒙上一層水氣，讓我難以看清。
When you take a hot shower, the bathroom mirror will quickly steam up.
當你洗熱水澡時，浴室的鏡子很快就會蒙上一層水氣。