1. in advance 事先，提前。如：

The heavy luggage was sent in advance. 笨重的行李已事先送去。

Everything has been fixed in advance. 一切都已预先安排好了。

2. in advance of 在……前面，超过，比……进步。如：

She walked in advance of her husband. 她走在她丈夫前面。

He is far in advance of his class. 他在班上遥遥领先。

3. on the advance (物价)在上涨。如：

Silk is on the advance. 丝绸价格在上涨。