glaring omissions明顯的遺漏

vary enormously差異巨大

The way in which... include the following

"Happy families are all alike; every ?unhappy family is unhappy in its own way."

We tend to seek easy, single-factor explanations of success. For most important things, though, success actually requires avoiding ?many separate possible causes of failure.

This very unequal distribution of wild ancestral species among the continents became an important reason why Eurasians, rather than peoples of ?other continents, were the ones to end up with guns, germs, and steel.