多云的用英语怎么说

多云的用英语是"overcast." 这个词来源于中世纪英语中的"casten"和"overcasten"，意思是"覆盖"或"遮盖"。例句：
It's a bit overcast today, but it's still warm. 今天有点多云，但还是很暖和的。
The sky was completely overcast and it looked like it was going to rain. 天空完全被云层覆盖，看起来像要下雨。
The weather forecast said it would be overcast tomorrow. 天气预报说明天会多云。