instruction in drill practice 练习教学

Drill & Practice 操练与练习

Drill and Practice 模式 ; 操练和练习 ; 操练与练习模式

drill-and-practice software 操练软件

computerized drill and practice 计算机化的演习

Practice & drill 不预警之演习

drill method practice method 练习法

drill-and-practice 训练和实践法

Drill and Practice Games 操练型游戏

Drill and practice courseware 操练与练习型课件