When Boobshe Firm arket k breaks through a weekly or monthly high, it is abuy signal.ihen it breaks through the previous weekly orqonthly low, it is asell sigal.

• 当市场穿过一个星期或一个月的高位时，这是买的信号。当它穿过前一星期或前一月低位时，这是卖的信号。