英汉词典

1. 相信；认为
    If you believe that something is true, you think that it is true, but you are not sure.

believe的解释

    e.g. Experts believe that the coming drought will be extensive...
           专家们认为即将发生的旱灾将侵袭大片地区。
    e.g. I believe you have something of mine...
           我想你拿了我什么东西。

2. 相信（某人或某人的话）
    If you believe someone or if you believe what they say or write, you accept that they are telling the truth.

believe的近义词

    e.g. He did not sound as if he believed her...
           他听起来似乎并不相信她。
    e.g. Never believe anything a married man says about his wife...
           永远不要相信一个已婚男人说的任何有关他妻子的话。

3. 相信有…；认为…存在
    If you believe in fairies, ghosts, or miracles, you are sure that they exist or happen. If you believe in a god, you are sure of the existence of that god.

    e.g. I don't believe in ghosts...
           我不相信有鬼。
    e.g. Do you believe in magic?
           你相信魔法真的存在吗？

4. 认为…是应该的（或正确的）
    If you believe in a way of life or an idea, you are in favour of it because you think it is good or right.

    e.g. He believed in marital fidelity.
           他认为婚内应该忠诚。
    e.g. ...decent candidates who believed in democracy.
           信奉民主政治的正派候选人

5. 对…有信心；信任；信赖
    If you believe in someone or what they are doing, you have confidence in them and think that they will be successful.

    e.g. If you believe in yourself you can succeed.
           只要自信，就能成功。