i.e. id est 换句话说 == that is / in other, 用来进一步解释前面所表明的观点。 The design classes(i.e., analysis classed plus technology classes) needed in our system.
i.e. id est 换句话说 == that is / in other, 用来进一步解释前面所表明的观点。 The design classes(i.e., analysis classed plus technology classes) needed in our system.