The primary difference between then and now, the scale of the violence.

那时与现在的主要区别在于暴力的规模。

One of the primary differences between evangelicals and other Christians is their relationship with the Bible.

福音派和其他基督徒的主要区别之一是他们与圣经的关系。

12.The primary difference is that a rabbit's young are born blind and without fur, while a hare's babies are born with a full coat and able to see.

野兔与家兔的主要区别是，家兔出生时是看不见东西的，而且没有胎毛；野兔出生时能够见物，且全身都有胎毛覆盖。