1. 致使;造成
    You can use render with an adjective that describes a particular state to say that someone or something is changed into that state. For example, if someone or something makes a thing harmless, you can say that they render it harmless.

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    e.g. It contained so many errors as to render it worthless.
           它错误太多,所以毫无用处。
    e.g. ...barrel-makers whose trade was rendered obsolete by the introduction of stainless steel wine vats.
           不锈钢葡萄酒桶的出现使木制酒桶制造者没了生意

2. 给予(帮助);提供(服务)
    If you render someone help or service, you help them.

    e.g. He had a chance to render some service to his country...
           他有了一个为国服务的机会。
    e.g. Any assistance you can render him will be appreciated...
           无论给予他何种帮助，他都会非常感激。

3. 宣布，作出(判决、决定或回应)
    When a jury or authority renders a verdict, decision, or response, they announce it.

render

    e.g. The Board had been slow to render its verdict.
           董事会迟迟未能作出决定。

4. 翻译
    To render something in a particular language or in a particular way means to translate it into that language or in that way.

    e.g. ...'Zensho shimasu,' which the translator rendered literally as, 'I will do my best.'...
           “Zensho shimasu,”译者直译为“我会尽全力”。
    e.g. All the signs and announcements were rendered in English and Spanish.
           所有的指示标志和公告都被译成了英语和西班牙语。

5. （用石灰或水泥）粉刷(墙壁)
    To render a wall means to cover it with a layer of plaster or cement, usually in order to protect it.