英汉词典

1. 多云的;阴天的;阴云密布的
    If it is cloudy, there are a lot of clouds in the sky.

    e.g. ...a windy, cloudy day.
           多云的大风天

2. (液体)浑浊的，不清澈的
    A cloudy liquid is less clear than it should be.

3. (想法、观点或问题)模糊不清的，含糊的
    Ideas, opinions, or issues that are cloudy are confused or uncertain.

    e.g. ...an absurdly cloudy political debate...
           极为含糊不清的政治辩论
    e.g. The legal position is very cloudy.
           法律对此的态度十分模糊。