词汇	硬关井
释义	硬关井 hard closing
随便看	activities of qi Activities of science and technology activities of scientific criticism activities of scientific research Activities of soil enzymes activities of students association activities of theme practice activities of the societies activities of the vessels activities of transmission activities of university student volunteers activitiesonarcs activities on arcs activitiesonnodes activities on nodes activities oriented curriculum activities parallel to daily living activities parallel to daily livingapdl activities parallel to daily livingAPDL Activities,Physical Activities,Political activities preference questionnaire activities ratios Activities,Recruitment Activities Report