Sandysn.桑兹sandyadj.含沙的；沙色的；不稳固的Sandy.n.桑迪（人名）sandy gravelstratum砂卵石Sandy area of Yulin榆林沙区sandy cushion layer砂垫层sandy-muddy field沙泥田sandy gravel stratum砂砾层sandy gravel subsoil砂砾石地基sandy cobble stratum砂卵石地层sandy gravel mixture砂砾石混合料sandy culture method缺铁锌症Sandy-soil culture沙培