学习 学习的英文 英语翻译 con; emulate; learn; learn about; learning; read; studylearning 拓展翻译 学习程序learning program学习单元learning element学习方法learning method学习过程learning process学习机learning machine学习简单概念learning simple conception学习控制learning control学习控制系统learning control system学习曲线learning curve学习软件learning software学习算法learning algorithm学习问题learning problem学习系统learning system学习系统模型model of learning system学习要求study requirement学习语言learning language学习者learner; scholar学习自动机learning automation; learning automaton镶牙学prosthodontia向量图学vector graphics