n.[C]

1. 训练人；教练员
2. 驯兽师；驯马师
   He is an animal trainer for the circus.

   他是马戏团的驯兽师。

3. 训练器材，练习器
4. 【空】教练机；飞行练习器
5. 【英】运动鞋

n.

1. a person who trains people or animals.
   ▸informal an aircraft or simulator used to train pilots.
2. Brit. a soft shoe, suitable for sports or casual wear.