The positive - going signal subtracts from the forward bias of the lower transistor.正向信号则使它的正向偏压减弱.Significant comorbidity such as ischemic heart disease and stroke subtracts 2 points.像缺血性心脏病和中风等明显合并症者也要减去2分.A businessma...
It is almost impossible to visit Florida without falling in love with the state...去佛罗里达观光而不爱上这个州几乎不可能。He almost had to shout to make himself heard above the music.为了压过音乐声，他几乎得大声喊才能让人听见。Mars has an insubstantial atmospher...
山间的一小块耕地是不可能养活一大家人的。A smallholding in the hills could not support a large family.他有将近1,000公顷的草场和耕地。He had nearly a thousand acres of grazing and arable land.他在自家的部分耕地里种上了咖啡。He has sown coffee on part of his acreage....