Long

3490附近不破继续震荡区间上涨到上边界，

长见识了，，左边一个走一半的震荡区间，，然后跌破震荡区间，，再回来震荡区间，，重新确定震荡区间上下边界，，，

基本操作，，，基本操作，熟练度+1

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