Sometimes I lack patience in what I am doing. However, I'm very careful with my work.
我有时候对自己的所作所为缺乏耐心,不过工作很细心。
Thus one simple fact, a change in the number of bison, had an effect on the whole wildlife chain of the plains.
因此,出现了这样一个简单的事实--野牛数目换的变化对平原的整个野生生物链都产生了影响。