在形容某人是under a cloud的时候意思是此人受到别人的怀疑，认为此人做了什么错事或被卷入了非法活动。
- After 20 years at the company, Sean left suddenly under a cloud.
- Money was stolen from Jane's desk and now everyone is under a cloud of suspicion.
值得注意的是，另一个短语to be on cloud nine意思是对刚刚发生的事情感到心满意足，非常高兴。
- The team were on cloud nine after they won the match and the tournament.
