Be as quick as possible,I must be on the road in a quarter of an hour."
“最好能赶快写,再过一刻钟我就要上路了.
He lets me inform as fast as possible him.
他要我尽快通知他.
He speaks :" if you inform as fast as possible me,I will be unequal to feel grateful."
他说:“如果你尽快通知我,我将不胜感激.”