Child mortality in africa has plummeted , belying the continent 's " hopeless " reputation .

非洲儿童死亡率骤降，这与非洲“无望之州”的名声并不符合。

Slightly belying its name , the fine-structure constant is actually a compound of several other physical constants , whose values can found in any physics textbook .

精细结构常数实际上是其他几个能在任何物理学教科书中找到数值的物理常数合成，同它的名称稍微有些名不副实。

On average there is no significant difference in iq between righties and lefties , studies show , belying popular perceptions .

研究显示，与大众的看法不同，习惯用右手的人和左撇子之间一般来说在智商上没有明显的差别。