名词

1. Is he a good swimmer?
他游泳游得好吗？

1. 浮子：swelling capacity of coal 煤的膨润度 | swimmer 浮子 | swing 摇动

2. 游泳运动员：fortune-teller 占卜者,算命先生 | swimmer 游泳运动员 | snake-charmer 弄蛇者

3. 游泳选手：蹼泳 fin swimming | 游泳选手 swimmer | 分组预赛 heat

1. 游泳运动员;游泳爱好者;游泳者
A swimmer is a person who swims, especially for sport or pleasure, or a person who is swimming.

e.g. You don't have to worry about me. I'm a good swimmer...
你不用担心我。我水性很好。
e.g. She wants to become an Olympic swimmer...
她想成为一名能够参加奥运会的游泳运动员。

noun

1. a person who travels through the water by swimming

e.g. he is not a good swimmer

Synonym: natatorbather

2. a trained athlete who participates in swimming meets

e.g. he was an Olympic swimmer