Some chartists follow patterns such as "head and shoulders" and "double tops"; others focus on moving averages; a third group believes markets move in pre-determined waves.

一些图表分析师遵循诸如“头肩型态(head and shoulders)”和“双顶(double tops)”之类的模式；其他则关注移动平均值；第三类则相信市场走势的波动已预先决定。

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Lying on his back in a tent, with head and shoulders sticking out one end, he would look up to the tops of the trees, and prepare for sleep.

ECONOMIST: Trees