Adverb:

1. in secret or covertly;

   "held a meeting sub rosa to avoid general criticism"
   

subtien.副系杆subn.潜艇；替代品vi.替代vt.转包合同subterranean tank地下油罐subroutine design子过程subsynoptic scale次天气尺度Subgenus Neoculexn.新库蚊亚属subantive verdict实体裁定Subgenus Topomyian.局限蚊亚属subtranient value[电] 次暂态值sub-lethal dose半致死量subdural pressure硬膜下压力sub-pixel model亚像元模型