游泳者

• natator
• swimmer
• natationist

例句

1. 一个正在呼救的游泳者
   A swimmer who was calling for help.
2. 游泳者忽然抽筋，因而不得不由他人救助出水。
   The swimmer was seized with cramp and had to be helped out of the water.
3. 游泳者从湖中出来。
   The swimmer emerged from the lake.
4. 游泳者两腿抽筋，不得不由他人救助出水。
   The swimmer got cramp in his legs and had to be helped out of the water.