喺理論上,一條山坡嘅路徑 會由一條橫跨山嘅直徑組成
當然,呢個句子嘅複雜版本係 "理論上,一條山坡嘅滑動 consists of straight sections across the hill, followed by sharp turns to the complementary angle, as if the skier is being reflected from the edges of the run".