groundagen.停泊费；进港税groundn.地面；地方；根据；主题；立场；水平；背景v.使停飞；困在家中；放在地上；使 ... 搁浅；打基础动词grind的过去式和过去分词形式ground penetrating rader探地雷达（GPR）Ground Transport Express地面运输特快车groundwater conservation地下水保持ground distance elements接地距离保护ground air communication地对空通信ground-based GPS-met地基GPS气象ground electronic system地面电子系统ground satellite station地面卫星站groundwater accumulation地下水积贮ground fault neutralizer消弧线圈