1. (使)膨胀;(使)扩大;(使)增加
    If the amount or size of something swells or if something swells it, it becomes larger than it was before.

    e.g. The human population swelled, at least temporarily, as migrants moved south...
           随着移居者南移,人口出现膨胀，至少是暂时性膨胀。
    e.g. By the end of this month the size of the mission is expected to swell to 280 people...
           到这个月底，参加该任务的人员规模将有望增至 280 人。

2. (身体部位)肿胀，膨胀
    If something such as a part of your body swells, it becomes larger and rounder than normal.

    e.g. Do your ankles swell at night?...
           你夜里脚踝肿吗？
    e.g. The limbs swell to an enormous size.
           四肢肿得不得了。

3. 涌起，充满(某种情感)
    If you swell with a feeling, you are suddenly full of that feeling.

    e.g. She could see her two sons swell with pride.
           她能看出她的两个儿子充满了骄傲。

4. (声音)增强,变响亮
    If sounds swell, they get louder.

    e.g. Heavenly music swelled from nowhere.
           不知从何处响起天籁般的音乐。

5. 浪潮;浪涌
    A swell is the regular movement of waves up and down in the open sea.

swell

    e.g. We bobbed gently up and down on the swell of the incoming tide.
           我们随着涨潮的浪涌轻轻地起伏。

6. 极好的;了不起的;非常棒的
    You can describe something as swell if you think it is really nice.

    e.g. I've had a swell time.
           我过得极为开心。

7. see also: swelling;swollen;groundswell

相关词组：swell up