1. 使孤立;使脱离(朋友、支持者)
    To isolate a person or organization means to cause them to lose their friends or supporters.

    e.g. This policy could isolate the country from the other permanent members of the United Nations Security Council...
           这一政策可能会使该国孤立于联合国安全理事会其他常任理事国之外。
    e.g. Political influence is being used to shape public opinion and isolate critics.
           政治影响正被用来左右公众舆论,使批评家们陷于孤立。

2. 使隔离;使与世隔绝
    If you isolate yourself, or if something isolates you, you become physically or socially separated from other people.

    e.g. When he was thinking out a problem Tweed's habit was never to isolate himself in his room...
           思考问题的时候,特威德从来没有把自己关在房间里的习惯。
    e.g. His radicalism and refusal to compromise isolated him...
           他的激进主义与拒绝妥协使他受到孤立。

3. 单独考虑;区别看待
    If you isolate something such as an idea or a problem, you separate it from others that it is connected with, so that you can concentrate on it or consider it on its own.

    e.g. Our anxieties can also be controlled by isolating thoughts, feelings and memories...
           我们也可以通过将一些想法、感情与记忆分开考虑以控制焦虑情绪。
    e.g. ...attempts to isolate a single factor as the cause of the decline of Britain...
           试图分离出一种因素作为英国衰退的原因

4. 使离析;分离
    To isolate a substance means to obtain it by separating it from other substances using scientific processes.

isolate的解释

    e.g. We can use genetic engineering techniques to isolate the gene that is responsible...
           我们可以使用基因工程技术把相关基因分离出来。
    e.g. Researchers have isolated a new protein from the seeds of poppies.
           研究人员已经从罂粟种子里分离出一种新的蛋白质。

5. 隔离(病人、生病动物)
    To isolate a sick person or animal means to keep them apart from other people or animals, so that their illness does not spread.

    e.g. Patients will be isolated from other people for between three days and one month after treatment...
           治疗结束后,病人将与其他人隔离3天到1个月的时间。
    e.g. You don't have to isolate them from the community.
           你没必要把他们与社区隔离。