A strong point of his system is that the fast learner makes progress very fast and the slow learner can take as long as he needs.
他这套系统的一大优点是学得快的人可以飞速长进，学得慢的人则可以有充足的时间直到学会为止。
A strong point of his system is that the fast learner makes progress very fast and the slow learner can take as long as he needs.
他这套系统的一大优点是学得快的人可以飞速长进，学得慢的人则可以有充足的时间直到学会为止。
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