But that raises a further question: if left-handedness is beneficial, then why is it so rare?
But that raises a further question: if left-handedness is beneficial, then why is it so rare?
但是那样却又提出了一个更深一层的问题：要是左撇子真的有利，可为什么他们的数量那么少呢？
But that raises a further question: if left-handedness is beneficial, then why is it so rare?
但是那样却又提出了一个更深一层的问题：要是左撇子真的有利，可为什么他们的数量那么少呢？