英汉词典

1. 知识；学问；学识
    Knowledge is information and understanding about a subject which a person has, or which all people have.

    e.g. She told Parliament she had no knowledge of the affair.
           她告诉议会她对此事并不知情。
    e.g. ...the quest for scientific knowledge.
           对科学知识的探索

2. 据…所知
    If you say that something is true to your knowledge or to the best of your knowledge, you mean that you believe it to be true but it is possible that you do not know all the facts.

    e.g. Alec never carried a gun to my knowledge...
           据我所知亚历克从来不带枪。
    e.g. To the best of my knowledge, Gloria did not make these comments.
           据我所知，格洛丽亚没这么说过。

3. 因知道…而放心
    If you do something safe in the knowledge that something else is the case, you do the first thing confidently because you are sure of the second thing.

    e.g. You can let your kids play here, safe in the knowledge that they won't get sunburn.
           你可以放心让孩子们在这儿玩，他们肯定不会晒黑。