| 词汇 | be on cloud nine | 
| 释义 | be on cloud nine idiom  informal  C2 高兴极了;异常兴奋;乐不可支 to be extremely happy and excited  "Was Helen pleased about getting that job?" "Pleased? She was on cloud nine!" “海伦得到那份工作高兴吗?”“岂止是高兴?她简直飘飘然了!”  | 
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