QLOOKアクセス解析
俊英
塾の窓から見える風景
Selfish disorderly talk during the lesson distracts all members.
Whether by a teacher or by a student, chat which has nothing to do with
studying disturbs the progress of learning.

But a lesson which doesn't have a margin is not interesting.

To do an effective lesson is difficult.

晴れ
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