最简单平码公式算法简介：The huge black feather gradually disappeared between heaven and earth, as if it had never appeared before. Silence returned to the square. The place was still the same as when they first arrived, and the silence was eerie.
The huge black feather gradually disappeared between heaven and earth, as if it had never appeared before. Silence returned to the square. The place was still the same as when they first arrived, and the silence was eerie.
