介绍杀尾公式准确率90

　　方一里者为田九百亩。方十里者，为方一里者百，为田九万亩。方百里者，为方十里者百，为田九十亿亩。方千里者，为方百里者百，为田九万亿亩。

What I had fail'd in, and what rightly done.She smiled, and cured me with that smile's sweet grace,

When the fiery orb was all defined,There I stood, as though in darkness, blind,Beat my breast, my quicken'd members threwOn the earth, brow-foremost, at the view.