Her grandmother had the gift of making people happy.她奶奶有逗人开心的本事。They are naturally good salesmen with the gift of the gab.他们天生就是能说会道的推销能手。The surprise gift is a thankyou for our help.这份意外的礼物是为了感谢我们给予的帮助。...
放大器自激振荡的频率就取决于流体的速度.Amplifier self - oscillates at a frequency depending on the velocity of the fluid.我们从经验观点来介绍运算放大器.We will approach the op - amp from an empirical point of view.它是三极管放大器的等效电路.It is the equivalent circu...