such changes will spread across the world like a breath of fresh air, and the past will be gradually fade away like a very bad dream.
这样的改变就像一阵新鲜空气席卷世界,过去会像一个非常糟糕的梦那样逐渐褪色。
during the 19th century, cholera spread across the world from its original reservoir in the ganges delta in india.
在19世纪,霍乱在世界各地的蔓延源自印度恒河三角洲的最初宿主。
our kind, homo sapiens, evolved in africa between 200, 000 and 70, 000 years ago and has spread across the world in the last 60, 000 years.
我们人类(homo sapiens)20万年前到7万年前在非洲缓慢进化,并在以后的6万年中分布世界各地。