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...
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...