drill 侧重进行有系统的，严格和重复的练习。
exercise 主要指为强壮体魄而进行的锻炼，也可指进行练习以保持已经获得的技巧。
practice 指把所学的理论或知识用于实践以获得技艺与技巧。
training 普通用词，泛指为从事某种职业而进行的身体或智力方面的训练。
discipline 既可指训练又可指为达到某种熟练程度而进行的约束。
参考例句
1. The football team was disciplined by a professional trainer. 这支足球队受过专业教练员的训练。
2. Good schools have good discipline. 好的学校有好的纪律。
3. It requires discipline and time to follow correctly. 正确地遵循咜们需要训练及时间。
英英解释
n.
1. a branch of knowledge
2. a system of rules of conduct or method of practice
3. the trait of being well behaved
4. training to improve strength or self-control
5. the act of punishing v.
1. train by instruction and practice; especially to teach self-control
2. punish in order to gain control or enforce obedience
