First, it is necessary to control excessive demand, but also to ensure the effective supply.

首先，它是必要的控制过度的需求，而且也是为了确保有效供给。

youdao

First, it is necessary to control excessive demand, but also to ensure the effective supply.

首先，它是必要的控制过度的需求，而且也是为了确保有效供给。

youdao