专门用于开启软木瓶塞 Cork Screw
此混合肥料专门用于盆栽植物。
此陈列室专门用于陈列英国艺术品。
专门用于主动学习的能量使用占了能量总数的很大一部分。
Energy usage devoted to active learning accounts for a big part of it.
And what it was designed to do, was to solve that specific problem.
这就是它被设计出来的目的,用于解决某种专门的问题。
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