trainers
A trainer is someone who teaches people the skills that they need in order to do something.
a book for both teachers and teacher trainers.
一本适合教师和教师培训者看的书。
A trainer is someone who helps people to prepare for a physical activity such as a race by doing particular physical exercises.
She went to the gym with her personal trainer.
她和她的私人教练一起去了健身房。
A trainer is someone who teaches animals or birds to do particular things, for example, in order to be able to work for someone or to be a good pet.
The horse made a winning start for his new trainer.
这匹马为它的新驯马师开了个好头。
Trainers are shoes that people wear, especially for running and other sports.