1. 推断出;推论出;断定
    If you conclude that something is true, you decide that it is true using the facts you know as a basis.

    e.g. Larry had concluded that he had no choice but to accept Paul's words as the truth...
           拉里断定自己别无选择，只能当保罗的话是真的。
    e.g. So what can we conclude from this debate?...
           那么从这场辩论中我们能得出什么结论？

2. 结束(讲话);总结
    When you conclude, you say the last thing that you are going to say.

conclude

    e.g. 'It's a waste of time,' he concluded...
           “这是浪费时间。”他总结道。
    e.g. I would like to conclude by saying that I do enjoy your magazine.
           最后，我想说我的确很喜欢你们的杂志。

3. 结束;终止
    When something concludes, or when you conclude it, you end it.

    e.g. The evening concluded with dinner and speeches...
           这个夜晚在宴会和讲话中结束。
    e.g. The Group of Seven major industrial countries concluded its annual summit meeting today.
           由主要工业国家组成的七国集团今天结束了其年度峰会。

4. 达成(协议等);缔结(条约)
    If one person or group concludes an agreement, such as a treaty or business deal, with another, they arrange it. You can also say that two people or groups conclude an agreement.

    e.g. Mexico and the Philippines have both concluded agreements with their commercial bank creditors...
           墨西哥和菲律宾均已与商业银行债权人达成了协议。
    e.g. If the clubs cannot conclude a deal, an independent tribunal will decide.
           如果俱乐部之间无法达成协议，将由一个独立的仲裁委员会来裁定。