n. one who trains other persons or animals
n. 训练员, 驯马师
[电] 列车器
1. The trainer taught us how to improve our running technique.
教练教我们如何提高跑步技巧。
2. She is a personal trainer who helps clients reach their fitness goals.
她是一名私人教练，帮助客户实现健身目标。
3. The dog trainer used positive reinforcement to teach the puppy commands.
狗训练师使用积极强化法来教小狗指令。