train fine

例句：

1. 1.She trains her dog to obey commands.
   她训练她的狗服从命令。
2. 2.He practices playing the piano every day.
   他每天练习弹钢琴。
3. 3. The chef is refining his recipes for the next meal.
   厨师正在为下一道菜精练他的食谱。