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1·I like to call it suicide circle.

我喜欢称之为循环自杀。

2·His companions preferred suicide to surrender, so they decided to form a circle and to kill every third person and to proceed around the circle until no one was left.

他的同伴优先考虑自杀投降，所以他们决定在围成一个圈，都杀了第三人和继续圆形广场，直到没有留下一人。