purrv.(猫等满足地)呜呜叫;(机器等)发出低沉震颤声;(人)发出愉快的声音n.(猫等满足时)呜呜的叫声;(机器等)低沉的颤动声;人高兴发出的声音
purposen.目的;决心;意图;议题v.打算;决意
purposefullyadv.有目的地;蓄意地;果断地
purposefulnessn.目的性
purposeful adj.有目的的;果断的
purposeful accident故意型事故
Purposeful teaching目标教学法
purposeful negotiations有目的的谈判
purposeful hybridization控制杂交; 定向杂交
"led a happy purposeful life"