词汇	own a library
释义	own a library 拥有藏书
随便看	positive competition positive competition mechanism positive complex positive component positive computer positive computer zero positive concept positive conclusion positive/conclusive proof positive condition positive conditional element positive conditional reinforcement positive conditioned connection positive conditioned reflex positive conditioned stimuli positive conditioned stimulus positive conditioning positive conditions of an action positive conductor positive cone positive cone pulley positive confinement positive confiningbed positive confirmation positive conflict of jurisdiction