| 词组 | off day |
| 释义 | off dayn. phr.A period when one is not functioning at his or her best; a period of weakness. 竞技状态不佳的日子（或时期）；身体不适的日子（或时期）。◆ The champion was obviously having an off day; otherwise she would have been able to defeat her opponent.那位冠军显然处在竞技状态不佳的时期，否则她定能击败对手。 |
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