长椅周围的人群渐渐散去了。The crowd around the bench began to melt away.我们三三两两从农舍散去。We fanned out from the farmhouse in twos and threes.半夜时分，人群渐渐散去了。By midnight the crowd had thinned....

“散去”的英语可以翻译为：drop away，drop off ...