good swimmer的用法和樣例：
例句
- I like to swim, but I'm not a very good swimmer.
我喜歡游泳，可是我游得並不好。 - Jim was not a good swimmer, and nearly drowned when he drifted out beyond his depth.
吉姆不善於游泳，當他被水沖后漂到腳不著底的深處時幾乎被淹死。 - He boasts himself a good swimmer.
他自誇自己游泳高明。 - He's such a good swimmer that he makes me look sick.
他游得這麼好，真叫我相形見絀。
