He has invented innumerable excuses, told endless lies.他编造了数不清的借口和谎话。He kept waffling and finding excuses not to close the deal.他一直举棋不定，找出种种理由不予成交。It's easer for people to make excuses so we don't have to chang...
将面粉和发酵粉筛入中等大小的搅拌碗中。Sift the flour and baking powder into a medium-sized mixing bowl.所献血液一律要经过人体免疫缺陷病毒的筛查。All donated blood is screened for HIV.把面粉筛到碗里。Sift the flour into a bowl....
介绍一种微伏信号放大系统设计方法, 该系统主要由放大 、 滤波以及隔离输出三部分组成.Introduced a design of microvolt signal amplifier, which consists of amplifiers, filters and isolation.如果伏特作单位太大, 我们可用毫伏或微伏.Where the volt is too large a unit, we use the milliv...