1. 做，执行，履行（尤指复杂的任务或行动）
    When you perform a task or action, especially a complicated one, you do it.

perform是什么意思

    e.g. We're looking for people of all ages who have performed outstanding acts of bravery, kindness or courage...
           我们正在寻找那些见义勇为、乐于助人、勇气可嘉的人，年龄不限。
    e.g. His council had had to perform miracles on a tiny budget...
           他的委员会不得不以极少的预算去创造奇迹。

2. 起…作用；有…功能
    If something performs a particular function, it has that function.

    e.g. A complex engine has many separate components, each performing a different function.
           一个复杂发动机有很多独立零部件，每个零部件具有不同作用。

3. 演出；表演；演奏
    If you perform a play, a piece of music, or a dance, you do it in front of an audience.

perform

    e.g. Gardiner has pursued relentlessly high standards in performing classical music...
           加德纳一直不懈地追求古典音乐演奏的高水准。
    e.g. This play was first performed in 411 BC...
           该剧于公元前411年首演。

4. （人）表现良好/很差；（事物）运转良好/糟糕
    If someone or something performs well, they work well or achieve a good result. If they perform badly, they work badly or achieve a poor result.

    e.g. He had not performed well in his exams...
           他考试没考好。
    e.g. England performed so well against France at Wembley...
           在温布利球场上，英格兰队表现出色，击败了法国队。