教具套装在R2金鱼培训学校"的网站上零售价是30美元，包括一张长达45分钟的DVD，一本训练手册，一根鱼食棒和20多件小工具。
The kit, which retails for $30 at r2fishschool.com, comes with a 45-minute DVD, a training manual, a feeding wand and more than 20 accessories.
她希望她的员工(老师)接受这些教具的使用培训，但要理解他们(她的教室工作人员即老师)更是教室活动的观察者，而非指导者。
She wanted her staff to be trained in the use of these materials but to understand that they (her classroom staff) are more observers than conductors of classroom activities.
本文介绍了我们如何用模块式培训法（MES）制作的汽车电路教具及应用。
This article shows how we make and apply teaching tools of vehicular circuit by using MES.
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