1. 不平常的：off-island 外岛 | off-key 不平常的 | off-licence 卖酒执照

2. 不正常的：off-iron 等外生铁 | off-key 不正常的 | off-limitfile 隔离文件

3. off-key

3. (唱歌)跑调：query n. 询问 | off-key(唱歌)跑调 | off-track 唱错曲子

1. （音乐）走调的，不和谐的，不协调的
    When music is off-key, it is not in tune.

off-key的翻译

    e.g. ...wailing, off-key vocals and strangled guitars...
           悲戚走调的歌声与哽咽的吉他声
    e.g. No, no, no. This won''t do. Someone is off-key.
           不，不，不，这怎么行，有人唱走调了。

1. inaccurate in pitch

    e.g. a false (or sour) note
           her singing was off key

    Synonym: falsesour