longnn龙眼longadj.长的；冗长的；久的；长音的adv.长期地；久地；用于名词后强调某事发生在某整段时间v.渴望n.长时间；长音节；囤积商品者long tube vehicle长管拖车Longmenshan fault龙门山断裂long - termcare长期医疗longiludinal axis纵轴Long bone defects长骨缺损long in the toothadj.马齿日增(年纪大)Longgang Mountain龙岗山脉Longchuan celadon龙泉青瓷longleaf pine oil长叶松油long numeric data多位数据