ground in基础训练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groundwater survey地下水调查groundnut in shell花生果grounded collectoradj.集电极接地的ground-wood core心木Ground Entry Point地面进入点ground truth sites地面实况点ground-collectorn.集电极接地groundless charges无端的攻击Ground - holding地面等待ground coat enamel[化] 底釉