cloud up

• 短语动词，指天空被云层覆盖，或表面变得模糊、朦胧。

A phrasal verb used to indicate the sky becoming covered with clouds, or a surface becoming misty or unclear.

不可数 · 不及物 · 短语动词，不带宾语

1. Become cloudy (weather)informal

   When the sky becomes covered with clouds, often indicating possible rain.

   阴天

   • The sky started to cloud up in the afternoon.
   • It's clouding up; we should bring umbrellas.
   • The weather forecast said it would cloud up by evening.

   同义词cloud overdarkenovercast

   反义词brightenclear

2. Become unclear or opaqueinformal

   When a surface, like glass or a liquid, becomes less transparent or clear.

   变浑浊

   • The windows clouded up from the steam in the bathroom.
   • The water in the glass clouded up after adding the powder.
   • His glasses clouded up when he entered the warm room.

   同义词blurcloud overdimfilm overfoghazemistobscure

   反义词clear

基本动词cloud