The system has been optimized not obvious effect of a face-lift system to optimize effective.
对已经优化过的系统效果不明显，对新装的系统进行优化效果较好。
Effect: everyday persistence practice, can optimize the arm line, let more slender arms look beautiful.
效果：每天坚持练习，可以优化手臂线条，让手臂看起来更纤细优美。
The paper points out that various teaching methods can optimize teaching and improve teaching effect.
同时也提出了多种形式的教学，可以优化教学空间，完善教学效果。
The paper points out that various teaching methods can optimize teaching and improve teaching effect.
同时也提出了多种形式的教学，可以优化教学空间，完善教学效果。
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