組對象grouobjective: 集體目標(biāo)grouo blood donors needed: 型血液告急grouobjects: 組對象grounumber hlb: 基團(tuán)數(shù)grouobservation: 團(tuán)體觀察法下載手機(jī)詞典可隨時隨地查詞查翻譯
