1. 游泳;游水
    When you swim, you move through water by making movements with your arms and legs.

    e.g. She learned to swim when she was really tiny...
           她很小的时候就学会了游泳。
    e.g. I went round to Jonathan's to see if he wanted to go swimming...
           我去乔纳森那里看看他是否想去游泳。

2. 参加游泳比赛
    If you swim a race, you take part in a swimming race.

    e.g. She swam the 400 metres medley ten seconds slower than she did in 1980.
           她 400 米混合泳的成绩比其 1980 年慢了 10 秒。

3. 游过(一段水域);横渡
    If you swim a stretch of water, you keep swimming until you have crossed it.

    e.g. In 1875, Captain Matthew Webb became the first man to swim the English Channel.
           1875年，马修·韦布船长成为横渡英吉利海峡的第一人。

4. (鱼)游，游动
    When a fish swims, it moves through water by moving its body.

    e.g. The barriers are lethal to fish trying to swim upstream.
           这些障碍物对于想要往上游游动的鱼儿来说是致命的。

5. (通常指生病时觉得物体仿佛在)旋转，摇晃
    If objects swim, they seem to be moving backwards and forwards, usually because you are ill.

swim

    e.g. Alexis suddenly could take no more: he felt too hot, he couldn't breathe, the room swam.
           亚历克西斯突然觉得受不了了，他感到闷热，喘不上气，仿佛整间屋子在旋转。

6. 头晕;眩晕
    If your head is swimming, you feel unsteady and slightly ill.

    e.g. The musty aroma of incense made her head swim.
           熏香发霉的气味令她感到头晕。

7. 浸;泡;充溢着
    If something is swimming in liquid or is swimming with liquid, it is surrounded by and covered with it.

    e.g. He polished off a large steak, salad, broccoli swimming in thick sauce, and half a litre of wine.
           他狼吞虎咽地吃下了一大块牛排、很多色拉和浸着浓稠酱汁的花耶菜，还喝了半升红酒。

8. sink or swim -> see sink