Good morning, ladies and gentlemen. It's very satisfying to see so many of you here.
各位女士各位先生,早上好,在这里见到你们大家使人感到非常满意。
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。