早期的蓝色音乐中会有几句歌词连续重复出现。
The words of early blues songs often consisted of a single line repeated two or three times before changing.
按其应用范围，这种技术基本上可分为两大类：连续重复频率和爆发式重复频率。
There are two kinds of repetitive pulsed power technology:continuous rep-rate and burst rep-rate.
每天将脚浸泡在纯苹果醋三四次，连续重复几天，就可以很快的去除感染，缓解疼痛。
But you can often quell the infection, and quickly ease the itching, by rinsing your feet three or four times a day for a few days with undiluted apple cider vinegar.
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