1.Renumber Figure 2 and Figure 3 to Figure 7 and Figure 6 respectively.

1.把图2和图3依序号为图7和图6。

2.If you later add more equations to the paper before the referenced equation, all the equations will automatically renumber and the cross-references will update.

2.就算以后在前面加入的公式，会自动号，交叉引用号也会自动修改。