"cloud over" in Chinese (Simplified)
变阴变得阴沉（情感、气氛）
Definition
天空被乌云覆盖。引申指气氛或情绪变得低落、紧张或忧郁。
Usage Notes (Chinese (Simplified))
既可指天气变阴，也可以形容氛围、心情变得压抑或消极。常用于描述人物情绪或场景氛围变化。不要和'cloudy'（只是天气）混淆。
Examples
The sky began to cloud over before the rain started.
雨要下之前，天空开始**变阴**了。
His face seemed to cloud over when he heard the bad news.
他听到坏消息时，脸色**变得阴沉**。
The weather will cloud over in the afternoon.
下午天气会**变阴**。
Her excitement quickly clouded over when she saw the test results.
她看到考试成绩时，兴奋感一下子就**消失了**。
You could see the room cloud over as everyone heard the sad announcement.
大家听到这个伤心的通知时，房间气氛一下子就**变得压抑**了。
It was sunny all morning, but it started to cloud over around noon.
整个上午都晴朗，中午左右开始**变阴**了。