gym instructor

例句：

1. 1. I need a gym instructor to help me with my fitness routine.
   我需要一位健身教练来帮助我进行健身训练。
2. 2.She is an experienced gym instructor who has trained many people in the past.
   她是一位经验丰富的健身教练，过去已经培训过很多人。
3. 3.The gym instructor gave us some tips on how to improve our strength and flexibility.
   这位健身教练给我们提供了一些关于如何提高我们的力量和柔韧性的建议。