fog up
collocation（使）蒙上水汽；起雾
My glasses fog up when I come in from the cold.
我从寒冷的地方一进屋，眼镜就蒙上了一层水汽。
（使）起雾；（使）蒙上水汽
先理解核心含义，再看它在真实句子里的用法。
（使）起雾；（使）蒙上水汽
to make or become covered with small drops of water, so that it is difficult to see through
The cold air caused the windows to fog up.
冷空气使窗户蒙上了一层雾。
常指窗玻璃、镜片等因水汽变模糊
被雾覆盖或仿佛被雾覆盖。
To become covered with or as if with fog.
在雾草或再生草上放牧牲畜；吃掉田地上的雾草
To pasture cattle on the fog (of), or aftergrass, of; to eat off the fog from (a field).
因冷凝或水而变得模糊
To become obscured in condensation or water.
被称为雾草的草覆盖
To become covered with the kind of grass called fog.
fog
Base
原形
fogs
3rd person
第三人称单数
fogging
-ing
现在分词
fogged
Past
过去式
fogged
Past participle
过去分词
The steam often fogs the bathroom mirror.
蒸汽经常使浴室的镜子起雾。
The cold air fogged the car windshield last night.
昨晚冷空气使汽车挡风玻璃起雾了。
The glasses have fogged up because of the mask.
眼镜因为口罩已经起雾了。
过去式和过去分词双写g加ed
His glasses fogged when he entered the warm room.
他一进入温暖的房间，眼镜就起雾了。
Don't let irrelevant details fog your judgment.
不要让无关的细节使你的判断变得模糊。
Choose the next layer that will help you use fog with more confidence.
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（使）蒙上水汽；起雾
My glasses fog up when I come in from the cold.
我从寒冷的地方一进屋，眼镜就蒙上了一层水汽。
被雾笼罩；变得模糊
The valley fogged over by dawn.
黎明时分山谷被雾笼罩。
把问题弄复杂；使问题模糊不清
Don't fog the issue with irrelevant details.
别用无关的细节把问题搞糊涂。
使头脑糊涂；使思维模糊
The medication fogged my mind.
药物让我的头脑昏昏沉沉。
蒙上雾气的挡风玻璃
He scraped the fogged up windshield.
他刮掉挡风玻璃上的雾气。
起雾；蒙上雾气
My glasses fog up when I go from cold air into a warm room.
当我从寒冷的室外走进温暖的房间时，眼镜会起雾。
混淆问题；使问题变模糊
Adding personal attacks will only fog the issue.
加入人身攻击只会把问题搅浑。
使头脑糊涂；让思维不清
The lack of sleep fogged my mind, and I forgot the password.
睡眠不足让我的头脑变得迷糊，结果我忘了密码。
Use fog naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
fog 的字母 g 像一团雾气缠绕，让人视线模糊；看到 fog 就想到雾把景物罩住。
语域：mixed 常见场景：literal weather and road conditions、figurative speech or writing about confusion、condensation on lenses or glass 作动词时，表示“起雾/蒙上水汽”或“使变得模糊、费解”。日常多用于天气、行车和镜头起雾等具体场合；在抽象讨论中常表示“使问题或思路混乱”，语气偏口语。另有较专门的摄影、农业义项，语境受限。
及物和不及物均可
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.